#347 How did the Polynesians navigate?
How did the Polynesians navigate? They used star compasses, maps of waves made using sticks, clouds, the color of the sky, and […]
#346 What was the Carrington Event?
What was the Carrington Event? It was the largest ever geomagnetic storm in recorded history? The Carrington Event lasted from the 1st […]
#345 What causes brain damage?
What causes brain damage? There are several things that cause brain damage. These can be traumatic injury, poison, stroke, tumor, or lack […]
#344 How did the Black Death change society?
How did the Black Death change society? It ended serfdom and slavery, improved worker conditions, brought a recession, harmed religion, increased antisemitism, […]
#343 How did the Black Death spread?
How did the Black Death spread? It was spread by people along trade routes. The Black Death is another name for bubonic […]
#342 When was shampoo invented?
When was shampoo invented? It was invented in India in about 1500. Our hair gets dirty because we secrete an oil called […]
#341 How does a parachute work?
How does a parachute work? A parachute works because of air resistance. If you jump out of an airplane, presuming you are […]
#340 How much blood can you lose?
How much blood can you lose? Well, obviously all of it. How much blood can you lose and still function? Depending on […]
#339 Why do we say boycott?
Why do we say boycott? The word comes from a British land agent who lived in Ireland. His name was Captain Charles […]
#338 When was the Roman forum built?
When was the Roman forum built? In the 7th century BC. The beginning of the Roman forum is difficult to get a […]