Adequate for cargo flights, not happening any time soon for passenger flights. Aviation safety is very strict and slow to change.
I highly recommend Linux Mint (cinnamon) as an entry level Linux distro. It looks and feels similar to Windows, and it's based on Ubuntu, so it has a lot of support and compatibility.
Where is that wire going, and what is it for?
What's blue and bad for your teeth?
A really fast brick.
I'm honestly surprised it's set to fall. I thought we were still increasing fossil fuel use.
Facial recognition and AI are great tools to assist law enforcement.
Relying on them as sole sources of information is just stupid.
Not true. There is more than enough lithium in the world for every person to have an EV. This is not even accounting for new battery chemistries like sodium ion that don't use lithium.
I still want more public transport though. Trains are remarkably easy to electrify and don't need batteries.
Sorry, 150 pitch fields.
Most large combustion SUVs are heavier than most electric cars.
Sodium ion batteries are being produced with no rare metals in them, and will be in production cars within a year. Hydrogen is difficult to store due to is low volumetric density, it's molecular size, and corrosive nature.
Hydrogen (fuel cell) cars all have a battery because a hydrogen fuel cell is slow to change it's energy output, so can't change its output fast enough to directly power the car.
Battery electric cars are about 90% efficient from charging from the grid to moving. Hydrogen cars are about 30% efficient from grid to moving when made from renewable energy. These efficiency numbers include the weight and rolling resistance of the car. The theoretical maximum efficiency of hydrogen storage allowed by the limits of physics is about 50%.
The volumetric density of hydrogen is so low that you would need 20 tanker trucks to transport the same amount of energy that 1 tanker truck of gasoline can carry. This is at maximum pressure or liquified.
Hydrogen only makes sense when the weight of the energy storage medium is critical. As demonstrated by American cars, it isn't.
Hydrogen is only 30% efficient compared to 90-95% for batteries. Most hydrogen is currently made from fossil fuels, and contains less energy than the fossil fuels used to make it.
18107
joined 2 years ago
I find your lack of comma disturbing.