steven cummer

Huge lightning strikes back
Lightning strikes often hit the ground during storms, but scientists have recently captured an image of an extremely large lightning bolt in the opposite direction.
America presents 'invisibility cloak' before sound waves
US scientists have just released a type
The system converts shortwaves such as Wi-Fi signals, satellites into electricity
Researchers at Duke University have recently invented a low-cost device that can collect microwave signals and convert them into energy to recharge batteries.