#28 Why can’t we see color at night?
I learned this today. We can’t see colors in the dark because our eyes detect light waves in two different ways. In our eyes, we have rods and cones that…
I learned this today. We can’t see colors in the dark because our eyes detect light waves in two different ways. In our eyes, we have rods and cones that…
I learned this today. Why would we evolve with a throat and windpipe that are so close together we can choke? In 2019, 5228 people choked to death in the…
I learned this today. The horse collar changed society in a huge way and many things we take for granted now came about because of the horse collar. There are…
I learned this today. Why is Wall Street called “Wall Street” and why has it become a financial center? There are two theories as to why Wall Street is called…
I learned this today. What causes water mirages and heat hazes? Water mirages and heat hazes are caused because light travels at different speeds through warm air and cold air.…
I learned this today. An electric eel produces electricity in the same way that a battery does. Electric eels usually grow to be about 2m long and they have three…
I learned this today. The piano is only 300 years old and many famous composers that we know composed for the harpsichord, not the piano. The piano was invented by…
I learned this today. Most TV remote controls operate by sending binary signals to the TV using infrared light. The remote controller in your house has an LED fitted to…
I learned this today. Cats appear never to blink, but they actually blink with a third eyelid, a nictitating membrane, which is difficult for us to see. Most animals that…
I learned this today. Hurricanes and tornados are not the same thing. Hurricanes, typhoons. and cyclones always form over the sea. Incidentally, hurricanes, typhoons, and cyclones are all different names…