#393 Why do we get jet lag?
Why do we get jet lag? We get jet lag because rapid travel puts our circadian rhythm out of sync with the local time. Jet lag is a fairly recent…
Why do we get jet lag? We get jet lag because rapid travel puts our circadian rhythm out of sync with the local time. Jet lag is a fairly recent…
Why are there many different types of screw head? The different types of screw head allow for different amounts of torque and for use by different machines. There are over…
How does LiDAR help archaeologists? It can map the ground down to the millimeter, allowing archaeologists to find the remains of cities and graves that might otherwise remain hidden. LiDAR…
Why do mustard and wasabi make your nose hurt? Mustard and wasabi hurt your nose instead of your tongue and throat because the oil in them turns into a gas.…
Why are sunsets such beautiful colors? The beautiful colors of sunrises and sunsets are caused because light rays are scattered by particles in the sky. Light has different wavelengths and…
How do metal detectors work? Metal detectors work by transmitting an electromagnetic field that energizes any metal near it. There are three different types of metal detector and they all…
What is the smallest thing an electron microscope can see? An electron microscope can see atoms that are 0.05 nanometers long. 0.05 nanometers is a very difficult number to imagine.…
How does body armor work? By breaking up the bullet and removing its kinetic energy. Armor has been around for a long time, but it has always had to adapt…
Why do mosquito bites itch? Mosquito and insect bites itch because the immune response is triggered after the mosquito finishes biting. There are over 110 trillion mosquitoes from 3,000 different…
What is chewing gum made of and what happens if you swallow it? These days, chewing gum is just a gum base with sweeteners and a plasticizer. You can swallow…