When were magnets first used?

Answer The Chinese and Greeks discovered magnetism independently of one another when they found that lodestone attracted iron. According to San Diego Miramar College, seafarers began using magnetic compas... Read More »

Top Q&A For: When were magnets first used

How old were you when you first used a computer?

About 35. I had always used typewriters up until then.

When were bar codes first used?

In 1948, Bernard Silver, a graduate student at Drexel Institute of Technology in Philadelphia made the first step in the use of bar codes. Silver and Norman Joseph Woodland, a twenty-seven-year-old... Read More »

When were airbags first used?

Airbags were first conceived as an automotive safety device in the early 1950s, with the first patent granted to John Hetrick in 1953 for a "safety cushion." However, airbags did not become a real... Read More »

How old were you when you first used a tampon?

I was 12 when I got my period, and I'm 14 and don't wear tampons. I've tried twice, but they just don't feel right, so I take them out. I perfer pads,soo...