Great Women You Should Know… Hedy Lamar
You probably do not know who the actor Hedy Lamarr was as her last film credit was in 1958. If you ask your parents they may have a vague recollection or at least know her name.
What they probably don’t realize is that she wasn’t only an actor. She was a philosopher and, most importantly this month as we remember the World Wars and the sacrifices made during those wars, she was an inventor. She and avant-garde composer George Antheil worked together to create the first broad-spectrum frequency hopping wireless communications.
“What on earth is that?”, you’re probably thinking!
Science News – Solar Storms Due to Hit Earth
This weekend the Earth is due to be hit by a pair of solar storms that might affect radio and satellite communication. But how and why does this happen?
What Does Solar Mean?
Anything that is related to a sun is commonly described as being solar. Our sun is a typical medium-sized yellow star which is about 5 billion years old. Its surface temperature is about 5,500°C, but even that isn’t as hot as its superheated centre. Some parts of the sun’s surface are cooler, with a temperature of between 2,700–4,200°C, and these appear darker when viewed through specialised telescopes. These cooler patches are caused by fluctuations in the sun’s magnetism and are called sun spots.
Can You Catch a Cold from Cold Weather?
