technology

Questions and Answers

What chemical elements do the metamaterials consist of?

Questions and Answers

Who invented the mobile phone?

Questions and Answers

Drainage of rainwater through a (horizontal) sewer pipe. A rule of thumb says that the surface area (cm²) of the cross-section of a...

Questions and Answers

Can a walki-talki be used as a radio station? (so as transmitter)

Questions and Answers

What’s in a battery?

Questions and Answers

What is a marble made of?

Questions and Answers

What about the warranty and lifespan of a mobile phone battery?

Questions and Answers

Is the NDB, a 28,000-year battery made from nuclear waste encased in diamonds credible?