Science Picker https://www.sciencepicker.com/en/ We pick the science of life Mon, 20 Jan 2020 10:58:46 +0000 en-US hourly 1 https://wordpress.org/?v=5.3.2 https://www.sciencepicker.com/wp-content/blogs.dir/1/uploads/sites/15/cropped-New-Project-32x32.png Science Picker https://www.sciencepicker.com/en/ 32 32 Ancient super volcanoes, the key to our future energy https://www.sciencepicker.com/en/ancient-supervolcanoes-the-key-to-our-future-energy/ Tue, 07 Jan 2020 16:04:29 +0000 https://www.sciencepicker.com/?p=172 We have to stop using abundant fossil fuels as they are destroying everything. And while there is no shimmering bullet to get rid of all our climate difficulties, electric cars could be one way we can start to lower down the carbon dioxide discharges. But in order to make electric cars, we need to make […]

The post Ancient super volcanoes, the key to our future energy appeared first on Science Picker.

]]>
We have to stop using abundant fossil fuels as they are destroying everything. And while there is no shimmering bullet to get rid of all our climate difficulties, electric cars could be one way we can start to lower down the carbon dioxide discharges. But in order to make electric cars, we need to make batteries that can produce enough steam to run cars. And for that, we need lithium.

This light, glittering metal is becoming hard to come by. Most of the planet’s lithium supply comes from volcanic rock sediments in Australia including salt flats in Chile. But as we extend mining those deposits to power our cellphones, laptops, and power tools (and to construct things like nuclear weaponry and psychiatric medications), the scope of what we can do with lithium-ion batteries becomes more confined. We can’t use what we can’t find.

But a modern study distributed in the diary Nature Communications recommends that researchers from Stanford University and the U.S. Geological Survey might have discovered an innovative origin of lithium in North America’s supervolcanoes.

Sounds impressive! But what does that even mean?

Supervolcanoes are volcanic features whose explosions can be up to 10,000 times more prominent than an average volcano. They spread magma up to 240 cubic miles (1,000 cubic kilometers) in all areas and build extensive calderas enormous holes that continuously fill up with rainwater over time. Crater Lake in Oregon is a magnificent example of one of those lakes created by a superoutburst that occurred thousands of years ago. How does this concept help us make batteries? Over tens of thousands of years, lithium from the volcanic sediments leeches out of the water that replenishes the basin, and the metal descends to the bottom, building clay described as hectorite.

Colorado including Wyoming, despite investigating samples from comparable places in Mexico and Sicily, conducted research to discover exactly how much lithium we could expect to squeeze from an antiquated super volcanic rock. The research unit looked at examples of rock of caldera sites in Nevada, and according to the researchers, the possibilities are good.

If you have a lot of magma ejecting, it doesn’t ought to have as substantial lithium in it to invent something that is worthy of financial investment as we previously believed, said co-author Gail Mahood, a professor of geological sciences at Stanford’s School of Earth, Energy & Environmental Sciences, in a press announcement. You don’t need exceptionally high frequencies of lithium in the magma to form lithium precipitates and reserves.

Mahood said we’re working to put electronic vehicles and large storage batteries in use which will help us reduce our carbon track.

The post Ancient super volcanoes, the key to our future energy appeared first on Science Picker.

]]>
10 homebuilt tech tools for the developing world https://www.sciencepicker.com/en/10-homebuilt-tech-tools-for-the-developing-world/ Sat, 04 Jan 2020 12:36:25 +0000 https://www.sciencepicker.com/?p=549 World’s almost 1 billion population lives on less than $1 a day. So, in this article, we have gathered some homebuilt products that can be put together using easy-to-find resources and a limited understanding of science and engineering. Zeer Pot Fridge A refrigerator consisting of one earthenware pot settled inside a second larger pot, with […]

The post 10 homebuilt tech tools for the developing world appeared first on Science Picker.

]]>
World’s almost 1 billion population lives on less than $1 a day. So, in this article, we have gathered some homebuilt products that can be put together using easy-to-find resources and a limited understanding of science and engineering.

  • Zeer Pot Fridge

A refrigerator consisting of one earthenware pot settled inside a second larger pot, with a layer of sand in between. Villagers, first, use clay and water to make molds and they dry them in the sun. After this, they press fresh clay around the molds. After adding a base and rim to each mold, they dry the pots in. Now the pots get ready for assembly after cooling them.

A layer of sand is placed at the bottom of the larger pot. The smaller pots are also on this layer of sand. At last, sand fills the space between the two. To make the pot functional, the sand is made wet, the smaller pots with vegetables are filled and then a wet rag over the whole thing is placed.

  • Solar Cooker

Sturdier materials such as wood instead of cardboard and foam instead of newspaper is used in its design. Four foil-coated panels are also added in order to concentrate the sun’s energy. Want to know the result of this design?  The cooking temperature of 350 to 400 degrees Fahrenheit, hot enough to roast a whole chicken!

  • Composting Toilet

In most rural communities, sanitary waste disposal is no laughing matter. According to the WHO, nearly 2 billion people live without good sanitation facilities and services. This results in bacteria and viruses from human waste ending up in the water supply, leading to a number of diseases. Start using this bioreactor system that converts sanitary waste to biogas, which is then burned and superheated by a heat exchanger to sterilize the treated effluent.

  • Flexi Hand Water Pump

The Flexi hand pump uses common materials PVC pipes, thread adapters, galvanized iron pipe and two glass marbles. The Flexi hand water pump can be assembled quickly and easily. Want to know how does it work? Read here! A PVC pipe fits into a second pipe and at the bottom of each pipe, a glass marble is attached. The inner pipe joins a T-shaped handle that forms an outlet. The pumping action raises and lowers the inner pipe which moves within the stationary outer pipe. An upward movement creates suction action, drawing water into the cylinder. A downward movement displaces water from the cylinder, pumping it out at the top of the hand pump. The person operating the hand pump can pump about 4 to 8 gallons of water per minute.

  • Rain Barrel

Rain Barrel is a simple matter of reconstructing the container so it can collect water. The design involves drilling two holes and then cutting a hole in the top of the barrel to receive a downspout. After this, a window screen is attached over this opening to catch debris and mosquitoes. After this, you have a perfectly serviceable rain barrel and a ready supply of water for various purposes.

  • Compost Bin

Like the rainwater harvesting system, composting has also been popular at small farms for decades. The process to build a compost bin involves converting organic debris vegetation, food scraps, and manure into rich, all-natural fertilizer. Farmers prefer to use high quality compost as it enables the soil to hold more water and provides more nutrients to crops. This furthermore increases the productivity of their land and results in higher revenues.

  • Solar Air Conditioner

It is easy to build a homemade air conditioner using a cooling fan from an old PC, wooden craft sticks, an absorbent cloth, and a small, 2-watt solar panel to generate power. Firstly, start by creating a frame out of the craft sticks, with the fan supported at the top so it blows down and two decks below the fan to support strips cut from the fabric. Everything should be stuck so the structure stands upright and sturdy. Then you connect the wires from the fan to the solar panel, wet the fabric and let the cooling begin.

  • Bicycle-powered Phone Battery Charger

A very little amount of know-how is needed to build your own bicycle-powered phone charger. To build this, you’ll need some basic electronics such as circuit board, rectifier, capacitor, headlight generator, and voltage regulator. First of all, you need to attach the generator to either the front or back wheel of your bicycle. Now cut the cord on your phone charger to expose the positive and negative cables. Now attach the electronic components on the circuit board and establish everything together. At last, cover all the electrical components with a tape and mount the circuit board just under the seat of your bicycle.

  • Solar-powered Laptop Battery Charger

To build a solar-powered laptop battery charger, you will need to collect the core components of the charger: the solar panel, 12-volt battery packs, a 12-volt car power outlet and an old suitcase larger than the laptop. Now attach the solar panel, the solar charge controller, and the power adapter to the outside of the case. You will need to drill into the case frame to accommodate attachment screws and to create holes for wiring purpose. Now disassemble each battery pack and again configure 10 cells so that they form long flat packs that fit easily in the case. Attach leads to the flat packs and link all of them together. Then attach the leads to the positive and negative terminals on the solar controller. You can find detailed instructions.

  • Cantenna

Building a cantenna at home is easy. Start by cutting a piece of copper wire about 1.25 inches long and solder the wire to the N-type connector. Let it cool; meanwhile, drill a hole in the tin large enough to hold the connector. After this, pass the chassis connector through the hole. Bolt the chassis connector to the can and then remove the factory antenna from the USB Wi-Fi adapter. After this, screw the smaller end of the pigtail cable into the adapter. At last, insert the USB adapter into your PC or laptop, mount the can outside, point it to a likely signal and boom!! You have got the wireless Internet.

Source: Pixabay

The post 10 homebuilt tech tools for the developing world appeared first on Science Picker.

]]>
You can now own a personal robot postman https://www.sciencepicker.com/en/you-can-now-own-a-personal-robot-postman/ Thu, 02 Jan 2020 07:54:22 +0000 https://www.sciencepicker.com/?p=105 We have witnessed various collections of robots at CES 2020 in Las Vegas, but one bot has already swaggered above the show floor to begin its primary job. Digit is a bipedal delivery robot designed by US company Agility Robotics, and it can promptly be your characteristic carrier for a decent six-figure amount, according to […]

The post You can now own a personal robot postman appeared first on Science Picker.

]]>
We have witnessed various collections of robots at CES 2020 in Las Vegas, but one bot has already swaggered above the show floor to begin its primary job. Digit is a bipedal delivery robot designed by US company Agility Robotics, and it can promptly be your characteristic carrier for a decent six-figure amount, according to The Verge.

We first confronted Digit in May 2019, when it was standing developed as collaboration between Agile and car manufacturer Ford. It was designed to ‘live’ inside driverless delivery vehicles, and gain its keep offering customers’ aggregates the last few yards to their front doors.

Navigating restrictions like plant pots, broken pavements, and garden gnomes could prove a complicated indictment for a bipedal robot. It communicates back to the distribution truck if it confronts an obstacle. There, heavy-duty hardware could determine the best way to handle it, and transmit directions back to the robot.

Digit or other Agility robots won’t be released to be armed with either harmful or non-lethal weaponry of any manner. This comprises weapons for non-human use, like those utilized to neutralize IEDs.

Source: Pexels

Walk this way

Ford is nevertheless thrusting ahead with the aforementioned plan and had bought two Digit units to extend the project, but Agility says the small bot has inherent to be enough more than a simple courier.

Agility’s CEO Damion Shelton informed The Boundary that its planned profession possibilities could involve warehouse trade, or transferring out inventories in controlled circumstances.

“For instance, indoor logistics can resemble warehouse operation, or transferring containers of parts in a multi-level cleanroom,” Shelton told The Verge. “Inspection includes both dedicated inspection (as in a railyard or industry) or accidental maneuvers like observing city foundation (telephone poles, etc.) while misbehaving a transfer task.” If you’d like a Digit of your own, not only the big pockets, you’ll also have to be patient. The first composition series will be just six units, and Dispatch is only targeting to produce 20-30 of the bots in the whole of 2020.

The post You can now own a personal robot postman appeared first on Science Picker.

]]>
How Elon Musk made NASA annoyed of its Giant Rocket? https://www.sciencepicker.com/en/how-elon-musk-made-nasa-annoyed-of-its-giant-rocket/ Tue, 24 Dec 2019 05:44:36 +0000 https://www.sciencepicker.com/?p=501 SpaceX has never flown a person into the space in its original crew-capable spacecraft called Crew Dragon. But now SpaceX is presenting its giant, the Starship. The Starship is built in Boca Chica which is a coastal village at the southeastern tip of Texas. The Starship aims at carrying giant crews into deep space. Seeing […]

The post How Elon Musk made NASA annoyed of its Giant Rocket? appeared first on Science Picker.

]]>
SpaceX has never flown a person into the space in its original crew-capable spacecraft called Crew Dragon. But now SpaceX is presenting its giant, the Starship. The Starship is built in Boca Chica which is a coastal village at the southeastern tip of Texas. The Starship aims at carrying giant crews into deep space. Seeing this happen, NASA’s administration is bristling.

This is occurring because the Crew Dragon which consists of an enclosure for carrying cargo and giant crew into space on top of a Falcon 9 rocket is still undergoing the final works and is well behind schedule. SpaceX awarded a NASA contract in 2014, said it would deliver an operational vehicle that astronauts could fly in by the end of 2017. In March, SpaceX finished one “without crew” mission to the International Space Station using the giant Starship. SpaceX planned to launch a crewed mission at the end of 2019. But when a Starship’s capsule collapsed during the engine testing in April, SpaceX and NASA took down the thought of first crewed mission.

Source: Pixabay

The beginning of whole controversy

On 30th September, Elon Musk told CNN that the Starship would be equipped to carry astronauts into space in the next 3-4 months. But Jim Bridenstine, NASA Administrator, told CNN that he was not satisfied.

Meanwhile, the Commercial Crew is years behind schedule. NASA hopes to see the same level of energy focused on the finances of the American taxpayer.

So, the major question is why is SpaceX building two ships? Why is SpaceX in an unrestricted tiff with the NASA administrators?

Starship is SpaceX’s response to a problem that began soon after NASA withdrew its space shuttle program, with its last flight in July 2011. At that time, NASA didn’t have any other spacecraft ready to ferry people and supplies into low Earth orbit where the International Space Station sits.

SpaceX says the enormous spacecraft, Starship is in its final phase and will be able to carry at least 100 tons or 90 metric tons of supplies into low Earth orbit. Besides transporting smaller loads, it is supposed to be capable of landing on the moon’s surface and return to Earth. SpaceX has also explained that the Starship will one day carry up to 100 people, though that number would mean cramped quarters.

The post How Elon Musk made NASA annoyed of its Giant Rocket? appeared first on Science Picker.

]]>
An alien planet spotted around a white dwarf https://www.sciencepicker.com/en/an-alien-planet-spotted-around-a-white-dwarf/ Mon, 23 Dec 2019 17:00:06 +0000 https://www.sciencepicker.com/?p=466 A new study shows that astronomers and scientists have spotted evidence of an exoplanet circling a super-dense corpse known as a white dwarf, for the first time ever. Study lead author Boris Gaensicke, from the University of Warwick in England, said: “This discovery is great progress because, over the past two decades, we had growing evidence that planetary systems […]

The post An alien planet spotted around a white dwarf appeared first on Science Picker.

]]>
A new study shows that astronomers and scientists have spotted evidence of an exoplanet circling a super-dense corpse known as a white dwarf, for the first time ever. Study lead author Boris Gaensicke, from the University of Warwick in England, said: “This discovery is great progress because, over the past two decades, we had growing evidence that planetary systems survive into the white-dwarf stage,”. 

Gaensicke further added that “We’ve seen a lot of asteroids, comets and other small space objects hitting white dwarfs”.

The vast majority of stars in the Milky Way galaxy will end up as white dwarfs. When all of these stars run out of their nuclear fuel, first, they will bloat up as swollen red giants and then eventually break down into the white dwarfs, which pack about one solar mass into the sphere size of the planet Earth. The main exception is really big stars, that bear approx. eight times the mass of the sun. These beasts go supernova when they end, and their remains normally end up as neutron stars or black holes, objects even denser and more exotic than white dwarfs. Gaensicke and his fellow astronomers studied a white dwarf termed as WDJ0914+1914, which lies about 2,040 light-years from the planet Earth. In data gathered by the Sloan Digital Sky Survey, the researchers figured out hydrogen, sulfur, and oxygen emissions coming from white dwarf, WDJ0914+1914. For a white-dwarf system, that’s an odd combination of gases. The VLT observations confirmed all three elements were present and suggested that the emissions are coming from a ring of gas around the white dwarf WDJ0914+1914.

Source: Pixabay

New studies

The new study was published online on 4th December in the journal Nature. In a companion paper also published on the same date, in the Astrophysical Journal Letters, Schreiber, Gaensicke, and colleagues investigated that what will happen in our own solar system when the sun will exhaust its own nuclear fuel about 4.5 billion years from now, swelling into a red giant that engulfs Mercury, Venus and likely Earth as well.

The researchers determined that the white dwarf that the sun becomes is likely to emit enough high-energy photons to evaporate Jupiter, Saturn, and Uranus and Neptune eventually, and some of those planets’ constituent gases may be detectable by any alien astronomers who may be around and observing our system at that time.

The post An alien planet spotted around a white dwarf appeared first on Science Picker.

]]>
Jet-powered car roars beyond 500mph. Can this car hit 1000 MpH without any damage? https://www.sciencepicker.com/en/jet-powered-car-roars-beyond-500mph/ Sun, 22 Dec 2019 14:37:18 +0000 https://www.sciencepicker.com/?p=181 This aero-shaped car is engineered to reach supersonic speeds, is combined with a jet engine and its own parachute braking system. The car just reached 501 mph (806 km/h) during tests in the Kalahari Desert of South Africa.  That’s a way off from striking the speed of sound i.e. 761 mph or 1,225 km/h. But […]

The post Jet-powered car roars beyond 500mph. Can this car hit 1000 MpH without any damage? appeared first on Science Picker.

]]>
This aero-shaped car is engineered to reach supersonic speeds, is combined with a jet engine and its own parachute braking system. The car just reached 501 mph (806 km/h) during tests in the Kalahari Desert of South Africa. 

That’s a way off from striking the speed of sound i.e. 761 mph or 1,225 km/h. But it’s one of many feats the car that is known as Bloodhound, will attempt over the next 12 to 18 months. You may probably see this beast trying to break the land speed record of 763 mph or 1,228 km/h that was set by former Royal Air Force pilot Andy Green in the jet-powered car known as Thrust SSC, in Nevada in 1997. The Royal Air Force Pilot, Green, is now behind the wheel of Bloodhound.

Once the goal is achieved, Bloodhound may aim to reach a whopping 1,000 mph (1,609 km/h), the top speed it has been designed for. Now you must be wondering how a supersonic vehicle withstands the increased drag and shock wave, and how it stays stable and controllable at such tremendous speeds. Let us tell you that these are the critical challenges of its aerodynamic design. Aerodynamic design gives full justice!

Although traveling beyond the speed of sound is now a routine task for the fastest military aircraft. It has been achieved three times before on land, by another British jet-powered car known as Thrust SSC 22 years ago. One of Bloodhound’s designers, Ben Evans, said, “Thrust SSC was an incredible vehicle, and it achieved a remarkable thing of being the first car to go beyond the speed of sound.”

Bloodhound has been designed from scratch to go beyond the speed of sound, and even to reach a top speed of Mach 1.3 i.e. 1,000 mph (1609 km/h), which is 237 mph (381 km/h) faster than Thrust SSC’s record.

Bloodhound’s long, narrow design is very different from the relatively wide cross-section design of Thrust SSC. Engineers say that Bloodhound’s long narrow design will help it reach the speed of 650 mph, before the increased drag and small shock waves in the air around the car start to impact the handling of the car.

Desert track

The 7-ton Bloodhound beast car is powered by a Rolls-Royce EJ200 turbofan jet engine, the same engine used in the Eurofighter Typhoon aircraft. Before the land-speed record attempt, Bloodhound will be also fitted with a powerful rocket engine to push it past the sound barrier. The chief engineer of Bloodhound LSR, Mark Chapman, said his team was measuring the aerodynamic stresses on the Bloodhound car at higher speeds. He also said that the team was also testing and refining the braking systems, which include parachute brakes and air brakes.

Ben Evans also said that bringing the car and its driver safely to a stop was as important as achieving supersonic speeds.

The post Jet-powered car roars beyond 500mph. Can this car hit 1000 MpH without any damage? appeared first on Science Picker.

]]>
Read this Atlantic report – How futuristic batteries may come from deep oceans https://www.sciencepicker.com/en/read-this-atlantic-report-how-futuristic-batteries-may-come-from-deep-oceans/ Sat, 21 Dec 2019 17:15:32 +0000 https://www.sciencepicker.com/?p=509 No one can deny this – a more sustainable future will be a battery-powered one. Renewables are as reliable as the weather, without batteries to store energy. To build the batteries, we will need to slow down the climate crisis that comes with its own costs. Wil S. Hylton, an American Journalist and a contributing […]

The post Read this Atlantic report – How futuristic batteries may come from deep oceans appeared first on Science Picker.

]]>
No one can deny this – a more sustainable future will be a battery-powered one. Renewables are as reliable as the weather, without batteries to store energy. To build the batteries, we will need to slow down the climate crisis that comes with its own costs. Wil S. Hylton, an American Journalist and a contributing writer for The New York Times Magazine, writes in The Atlantic that the world is self-assured to start mining the ocean’s deepest depths before we have even had a chance to know what might be lost.

Here’s the thing that you need to understand: to make the batteries that power our EV’s or electric vehicles, laptops, and smartphones, we require cobalt and other metals. Five of the world’s tech giant, Google, Apple, Dell, Microsoft, and Tesla are accused in a suit filed this month alleging that the giants are responsible for the deaths of children working as labor in cobalt mining industries in the Democratic Republic of Congo. Most of the metal is currently found in Congo.

These giants, along with environmental and human rights activists, are gravely looking for alternatives. A new alternative is emerging now! The deepwater plains are rich in metals such as cobalt, copper, manganese, and nickel and could be used to power the next device on your Wishlist. Wil S. Hylton says why the United Nations is preparing to deploy the largest mining operation in the world’s history and what could happen after the long-awaited Mining Code for international waters is finally approved in 2020. One thing for sure is that a new undersea mining industry might help us in moving towards a greener future on land, but at what cost in the ocean?

Source: Pixabay

What Wil S. Hylton writes?

The harmful impacts of burning fossil fuels and land-based mining are beyond debate. But the cost of looting the ocean is something impossible to know. What kind of creatures are yet to be found on the deepwater plains? How many essential cures? Is there any way to calculate the landscape value we, virtually, don’t know anything about? Of course, the world is full of uncertain choices, but the disparity between options is seldom so stark – the climatic change crisis and poor labor on the one hand, incalculable risk and potential on the other.

Wil S. Hylton, so gruesomely describes that people seem to be paying more attention to the crap we put into the ocean lately, alarmed by details of whales and coral glut on plastic “like Twinkies”. But we Have not spent as much time giving thought to the question of what we are willing to excavate up from its depths. There are no easy and satisfying answers when it comes to how to measure the risks and rewards of a rising industry, but Wil S. Hylton’s story is a good start.

The post Read this Atlantic report – How futuristic batteries may come from deep oceans appeared first on Science Picker.

]]>
Hyundai likely to make flying cars for Uber’s air taxi service https://www.sciencepicker.com/en/hyundai-likely-to-make-flying-cars-for-ubers-air-taxi-service/ Thu, 19 Dec 2019 09:04:03 +0000 https://www.sciencepicker.com/?p=416 A month before, Hyundai released a teaser of flying car, a concept it was bringing to the Consumer Electronics Show in Las Vegas. The flying car prototype will now showcase at CES this week. Not only will Hyundai produce these electric vertical takeoffs and landing (e-VTOL) aircraft on large scale, but it will also put […]

The post Hyundai likely to make flying cars for Uber’s air taxi service appeared first on Science Picker.

]]>
A month before, Hyundai released a teaser of flying car, a concept it was bringing to the Consumer Electronics Show in Las Vegas. The flying car prototype will now showcase at CES this week. Not only will Hyundai produce these electric vertical takeoffs and landing (e-VTOL) aircraft on large scale, but it will also put them to work for Uber’s promised air taxi service.

If you remember, Uber had announced its aerial ambitions in 2016 with a white paper that name the project “Uber Elevate”. The ride-hailing corporation has announced it requires to conduct its own test efforts in 2020 and plans to launch some version of an air taxi service in 2023, starting in Dallas, Texas, and Los Angeles, California. Recently, Uber also announced that it will offer helicopter taxi service in New York from lower Manhattan to John F. Kennedy International Airport.

Now Hyundai is along for the ride (flight?). It’s noteworthy because Hyundai is, in essence, lending its manufacturing credibility to Uber’s ambitious (if dubious) plan to launch an urban air taxi system by the mid-2020s. Based on the features, Hyundai’s PAV (Personal Air Vehicle) won’t be some Sonata in the sky. With two tilt-rotors on the tail, and 10 other rotors distributed around the egg-shaped cabin, the aircraft is designed to take off vertically, the transition to wing-borne lift in cruise, and then back to vertical flight to land.

Source: Pixabay

Hyundai lending manufacturing credibility to Uber’s plan

The five-person vehicle will have a cruising speed of 180 mph (290 km/h) and a cruising altitude of around 1,000–2,000 feet (300–600 meters) above ground. Hyundai says by using smaller, electric-powered rotors, the vehicle will produce less noise than a combustion engine helicopter, which is crucial for cities worried about noise pollution. During peak hours, it will require only about five to seven minutes for recharging. Hyundai says the flying car will have a range of 60 miles between charging.

It all seems great and fantastically futuristic on paper, but Hyundai is yet to test flying cars, piloted or otherwise, nor has it said how much all this will cost. There have been a handful of small-scale test flights of e-VTOL aircraft around the world, but none are currently in commercial operation. The technology is still in its very early days, and Uber and Hyundai, as well as a variety of other players in the field, face enormous regulatory and technical challenges in getting their respective air taxi plans off the ground.

Hyundai, still, is the first global automaker in the world to join forces with Uber for air taxi services. The automaker will produce and deploy the electric aircraft, while Uber will provide airspace support, ground operations, and, of course, the app through which customers can book flights.

Though Uber said it’s looking for partners that can meet its technical specifications, it had released images of its own concept aircraft last year ago, — electric-powered, minimal noise, and vertical takeoff and landing capabilities — as well as a company that can scale production to build tens of thousands of vehicles to meet the demand of on-demand service. Uber has struck similar arrangements with seven other aerospace companies: Joby, Jaunt, Embraer, Pipistrel, Karem Aircraft, Aurora Flight Sciences, and Bell.

The post Hyundai likely to make flying cars for Uber’s air taxi service appeared first on Science Picker.

]]>
How big is the universe? https://www.sciencepicker.com/en/how-big-is-the-universe/ Wed, 18 Dec 2019 06:48:04 +0000 https://www.sciencepicker.com/?p=403 The stars, galaxies, and planets we talk about are so far away. The starts that seem the close can take tens of thousands of years to reach from the Earth. The universe is huge. But just how big is it? This could be something that we can never know. Sarah Gallagher told Live Science that the size of the universe is […]

The post How big is the universe? appeared first on Science Picker.

]]>
The stars, galaxies, and planets we talk about are so far away. The starts that seem the close can take tens of thousands of years to reach from the Earth.

The universe is huge. But just how big is it?

This could be something that we can never know. Sarah Gallagher told Live Science that the size of the universe is one of the common questions of astrophysics. It might be not possible to get the right answer but that doesn’t stop scientists from their research and try.

The closer an object is in the universe, the easier its distance is to measure, Gallagher said. The sun? Piece of cake. The moon? Even easier. All scientists have to do is shine a beam of light upward and measure the amount of time it takes for that beam to bounce off the moon’s surface and back down to Earth.

Most distant objects in our galaxy are more complex, Gallagher said. After all, reaching them will take a strong beam of light. And even if we had the technological abilities to reflect light that far, who has thousands of years to wait around for the beam to bounce off the universe’s distant exoplanets and return to us? 

Scientists have a few methods for dealing with the most faraway objects in the universe. As stars grow, they change color, based on that color, scientists can estimate how much light, and energy, those stars give off. For instance, two stars with the same energy and brightness will not appear the same from Earth if one of them is much greatly far away. The farther one will naturally seem dimmer. The scientist can compare the star’s actual brightness with what we see from the Earth and use that difference to calculate the actual distance of the star from the earth.

To know about the absolute edge of the universe? How do scientists calculate the distances to objects that far away? And here things can get complicated.

Source: Pexels

But by calculating the size of that little bubble, scientists can estimate what’s outside of it.

The universe is 13.8 billion years old. This means the object whose light has taken 13.8 billion years to reach Earth must be the very farthest object that we can see. You might think that gives us a clear answer for the size of the universe: 13.8 billion light-years. But also keep in mind that the universe is continuously expanding at an accelerating rate.

The post How big is the universe? appeared first on Science Picker.

]]>
Russian cows wear VR systems to reduce anxiety https://www.sciencepicker.com/en/russian-cows-wear-vr-systems-to-reduce-anxiety/ Sun, 15 Dec 2019 01:36:25 +0000 https://www.sciencepicker.com/?p=387 Can you imagine a scene, where cows are wearing VR glasses? No, you are absolutely right. This is really funny and unbelievable to imagine a cow wearing virtual reality glasses. But dairy farmers in Russia are making their cattle wear VR (Virtual Reality) devices and hoping that their cows will be more relaxed while producing […]

The post Russian cows wear VR systems to reduce anxiety appeared first on Science Picker.

]]>
Can you imagine a scene, where cows are wearing VR glasses? No, you are absolutely right. This is really funny and unbelievable to imagine a cow wearing virtual reality glasses. But dairy farmers in Russia are making their cattle wear VR (Virtual Reality) devices and hoping that their cows will be more relaxed while producing milk. Keeping their cows stress free is the major reason of this practice.

This sounds like a story from 2000 AD comic, making a strange point about a dystopian society, but the Moscow Ministry of Agriculture and Food has released Pictures of these cattle wearing specially designed VR devices as proof.

There are number of different studies that show that there is a relation between a cow’s emotional state and its daily milk yield. Before this, we’ve heard of dairy farmers playing classical songs in their farms for their cows in order to lower their stress level and increase the daily milk production. But as technology is enhancing, new mood-altering solutions are being introduced. For example; the RusMoloko farm in Moscow (Russia) recently equipped its cattle with VR devices adapted for the “structural features of cow heads”.

Source: YouTube

The Virtual Reality cows

Well, we are living in digital world so why not cows experience the same. As this a 21st century, farmers and dairy owners are currently experimenting with these virtual reality headsets on their cows. Virtual reality could really ensure that cows experience the minimum stress and improve the quality of milk. So, what do the cows see through these virtual reality glasses, definitely flowering meadows under the sun, may be a cow’s paradise.

What ministry’s press release has to say?

The ministry’s press release concluded that “To solve pressing problems in milk production, experts are increasingly being involved not only in specialized fields but also specialists in the field of IT technologies”. The ministry’s press release also stated that “The developers of the virtual reality or VR studio are coming up in collaboration with veterinarians and consultants from the production, adapted human virtual reality devices taking into account the structural features of the head of cows”. Based on numerous studies of cattle’s vision, showing cows better perceiving shades of the red part of the spectrum and weaker green and blue tones, virtual reality architects also created a unique summer field simulation program.” This is still very much in the testing phase, but the ministry reports that already they’re recording a “decrease in anxiety and an increase in the overall emotional mood of the herd”. Though, the positive impact of the VR glasses on milk yields has yet to be confirmed.

The post Russian cows wear VR systems to reduce anxiety appeared first on Science Picker.

]]>