When I slide across a car seat to get out of the car on a cold day, why do I become electrically charged? What is going on at the atomic level? Why does the charge not discharge when my shoes touch the ground? Why does it discharge when I touch a metal car body? pls not in super big words I cant comprehend them lol

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?