technology

Questions and Answers

Why is it so difficult to store energy?

Questions and Answers

How can you calculate the circumferential speed of a stepper motor and on what does it depend?

Questions and Answers

Can’t electricity be created with a lever?

Questions and Answers

Why does a car’s remote control work from a greater distance if you hold it to your head?

Questions and Answers

How do glass doors that frost when you lock them work?

Questions and Answers

Why can’t we send scent the way we send sound and images?

Questions and Answers

What batteries does a GSM device run on?

Questions and Answers

Can you make a magnetic motor? (perpetual motion machine)