Automotive

Why Ghana relies heavily on used cars

The sale of electric cars is growing. Globally, some 2 million electric vehicles were sold in the first quarter of 2022—75% more than in the first three months of 2021. Most, though, are sold in high income countries.

Engineering

Inexpensive airborne testbeds could study hypersonic technologies

Miniature satellites known as CubeSats are taking on larger roles in space missions that might previously have been carried out by more expensive conventional spacecraft. Now, researchers at the Georgia Institute of Technology ...

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