Lifeboat Foundation

This flying motorcycle is straight out of an action movie.

Scientists from Tokyo Metropolitan University have used aligned “metallic” carbon nanotubes to create a device which converts heat to electrical energy (a thermoelectric device) with a higher power output than pure semiconducting carbon nanotubes (CNTs) in random networks. The new device bypasses the troublesome trade-off in semiconductors between conductivity and electrical voltage, significantly outperforming its counterpart. High power thermoelectric devices may pave the way for more efficient use of waste heat, like wearable electronics.

Thermoelectric devices can directly convert heat to electricity. When we think about the amount of wasted heat in our environment like in air conditioning exhausts, vehicle engines or even body heat, it would be revolutionary if we could somehow scavenge this energy back from our surroundings and put it to good use. This goes some way to powering the thought behind wearable electronics and photonics, devices which could be worn on the skin and powered by body heat. Limited applications are already available in the form of body heat powered lights and smartwatches.

The power extracted from a thermoelectric device when a temperature gradient is formed is affected by the conductivity of the device and the Seebeck coefficient, a number indicating how much electrical voltage is generated with a certain difference in temperature. The problem is that there is a trade-off between the Seebeck coefficient and conductivity: the Seebeck coefficient drops when the device is made more conductive. To generate more power, we ideally want to improve both.

Last week we covered how the Tesla Cybertruck’s aerodynamics might be better than its boxy shape suggests, and today Tesla CEO Elon Musk responded to the numbers and suggested that the Cybertruck could get a Cd (drag coefficient) as low as .3 – quite impressive for a pickup truck.

‘Landing at another airport was not possible, because of the visa requirements of passengers and as there was a large cargo of horses onboard,’ says KLM.

It may look like an “angry triangle,” but this truck packs a serious punch.

Rescuers are scrambling to save thousands of sheep trapped after a large cargo ship overturned in the Black Sea off the coast of Romania.

The Queen Hind capsized on Sunday after leaving the port of Midia, near the south-eastern city of Constanta.

It was carrying more than 14,000 sheep. All crew members were rescued.

A bullet train which ‘floats’ above the tracks using magnetic levitation could soon hit 373mph in China — making it faster than travelling by plane.

A prototype body of the science fiction vehicle was shown off in the eastern Chinese city of Qingdao this week.

The machine, designed by China’s China Railway Rolling Stock Corporation (CRRC), is slated to go into production in 2021.

Design and order your Cybertruck, the truck of the future.

Well this is cool #climatesolutions

Weighing just 300 kilograms, the Pipistrel Alpha Electro is an ultra-light electric aircraft and can be bought for just $140,000.