What is a flashlight?
Q: What is a flashlight?
A: A flashlight is a small, portable spotlight that produces a beam of light, used to see in the dark.
Q: What is it called in North America?
A: In North America, it is called a flashlight.
Q: What is it called in most Commonwealth countries?
A: In most Commonwealth countries, it is called a torch.
Q: What powers a flashlight?
A: A flashlight is usually powered by batteries.
Q: What kind of light bulb was used in the 20th century?
A: In the 20th century, an incandescent bulb was usually used.
Q: What kind of light bulb is used nowadays?
A: Nowadays, most flashlights use LEDs, which work slightly differently.
Q: What is the first battery suitable for portable electrical devices?
A: The first battery suitable for portable electrical devices was invented in 1896, and it was a dry cell battery that used a paste electrolyte instead of a liquid. It did not spill or break easily and worked in any orientation.
