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BBCNEWS Click June 4, 2024 13:33:00

The size that you d need to power a passengerjet would be way too heavy. and there s one potential solution that s getting people really excited hydrogen. hydrogen fuel cells combine hydrogen and oxygen to create a flow of electrons around a circuit to power a motor. and as we all know, hydrogen plus oxygen equals h20. the problem is. we can t do much about the fundamental properties of hydrogen. volumetrically, we need to compress it to get sort of in the ballpark of not quite a third of the efficiency of fuels that we use. that means that we need often very large, very heavy tanks, because they need very thick walls to deal with the incredibly high pressures we need them at. what you end up with is an aeroplane that can t have any passengers in. this is the challenge faced by zeroavia, one of several companies working to make hydrogen powered flight a reality. ....

Hydrogen Fuel Cells ,

BBCNEWS Click June 4, 2024 00:32:00

Up with new fuels. let s take a look at some of the options. there are biofuels, which are made out of things like plants or vegetable oils, but they still produce some harmful emissions. then there s electric. but although batteries are getting far more efficient, the size that you d need to power a passengerjet would be way too heavy. and there s one potential solution that s getting people really excited hydrogen. hydrogen fuel cells combine hydrogen and oxygen to create a flow of electrons around a circuit to power a motor. and as we all know, hydrogen plus oxygen equals h20. the problem is. we can t do much about the fundamental properties of hydrogen. volumetrically, we need to compress it to get sort of in the ballpark of not quite a third of the efficiency of fuels that we use. that means that we need often very large, very heavy tanks, because they need very thick walls to deal with the incredibly high ....

Vegetable Oils , Hydrogen Fuel Cells ,

BBCNEWS Breakfast June 4, 2024 05:37:00

One of the main greenhouse gases causing climate change. the industry faces an enormous challenge to clean up its act, and that means coming up with new fuels. let s take a look at some of the options. there are biofuels, which are made out of things like plants or vegetable oils, but they still produce some harmful emissions. then there s electric. but although batteries are getting far more efficient, the size that you d need to power a passengerjet would be way too heavy. and there s one potential solution that s getting people really excited hydrogen. hydrogen fuel cells combine hydrogen and oxygen to create a flow of electrons around a circuit to power a motor. and as we all know, hydrogen plus oxygen equals h20. the problem is. we can t do much about the fundamental properties of hydrogen. volumetrically, we need to compress it to get sort of in the ballpark of not quite a third of the efficiency of fuels that we use. ....

The One , Climate Change , Greenhouse Gases , Vegetable Oils , Hydrogen Fuel Cells ,

What are Wigner Crystals, and do they really exist? |

The groundbreaking confirmation of Wigner Crystals, theorized nearly a century ago by Eugene Wigner, marks a significant milestone in physics. Visualized for the first time by researchers at Princeton University, these electron-based crystals offer insights into quantum phases of matter and could lead to advancements in electronic materials and technology. This discovery showcases the power of theoretical physics and underscores the intricate relationship between quantum mechanics and material science. ....

Ali Yazdani , Eugene Wigner , Poll Panel , Princeton University , Researchers At Princeton University , Wigner Crystals , Wigner Crystal , Quantum Mechanics , Experimental Physics , Condensed Matter Physics ,

BBCNEWS BBC News June 4, 2024 22:45:00

Hydrogen fuel cells combine hydrogen and oxygen to create a flow of electrons around a circuit to power a motor. and as we all know, hydrogen plus oxygen equals h20. the problem is. we can t do much about the fundamental properties of hydrogen. volumetrically, we need to compress it to get sort of in the ballpark of not quite a third of the efficiency of fuels that we use. that means that we need often very large, very heavy tanks, because they need very thick walls to deal with the incredibly high pressures we need them at. what you end up with is an aeroplane that can t have any passengers in. this is the challenge faced by zeroavia, one of several companies working to make hydrogen powered flight a reality. they retrofit existing planes with hydrogen engines. the company had several successful test flights with this plane last year. ....

Hydrogen Fuel Cells , Hydrogen Engines , Test Flights ,