#554 What is a sponge?
What is a sponge? Sponges are animals that have a very porous skeleton and live in the sea. When we talk about sponges, we are talking about the organisms and…
What is a sponge? Sponges are animals that have a very porous skeleton and live in the sea. When we talk about sponges, we are talking about the organisms and…
How would a cure for cancer work? It would teach the immune system to attack the cancer cells. All of the cells in our bodies reproduce to make more copies…
Why are organ transplants so difficult? Because the organs are usually harvested from people who have died, there is a very short time window to perform the transplant, and the…
Why is there so much gold in Fort Knox? Because it is far enough away from any coast and is protected by the Appalachian Mountains. Fort Knox is famous worldwide…
Why are flowers different colors? Because they have evolved to attract different types of animals and insects. Flowers need insects and animals for two reasons: to pollinate them and to…
How much space junk is there? There are over 128 million pieces of space junk in orbit around Earth at the moment. There are 5,465 satellites orbiting in space at…
How do fireflies glow? They combine a chemical called luciferin, an enzyme called luciferases, oxygen, and fuel. Fireflies are not actually flies; they are beetles. They are also not one…
How is the Internet connected between countries? Countries are connected by over 500 underwater communications cables. Many people (myself included), think that international Internet connections are made by satellite, but…
How does a cochlear implant work? It uses a microphone to turn sound into electrical signals that are transmitted directly to the cochlear nerve, bypassing the non-working part of the…
When did April Fools’ Day start? No one knows. Although, most theories have it connected to the change from the Julian calendar to the Gregorian. The expression “April Fools’ Day”…