Happy Friday everyone. We’ve got friends coming for a sleepover with their two little girls. We can’t to see them! (and their parents, too) So here is this week’s question and answer episode. Let’s get smarter!
1. What’s friction?
Bang was sitting on the couch working diligently at some additions problems I printed for him. He solved them with Lego bricks – make a stack of 7 then make a stack of 5 stick them together, count them up and know that 7+5 = 12. Then he asks his mother this question. She tells him it’s when things rub together. Like when you rub your hands together and they get warm, that because of friction.
“Oh. Well then what is a fraction?”
That’s a verbal typo. He said friction, but meant fraction. The difference a vowel can make! So she then explained that a fraction is piece of something, like when you cut a pizza and eat part of it.
2. What’s acid?
It’s a chemical that can be corrosive and dissolve some metals. It can also refer to fruits like citrus that can be acidic. This is what gives them their sour taste. There are acids everywhere, including in your stomach. Normally, your stomach has ph value of 1-3, or up to 4-5 after a large meal. However, for the most acidic acid, which is fluoroantimonic acid, it lands on the Hammet acidity function (kinda like ph) at -28. To give you an idea of how strong that is, a ph of 1 is acidic enough to burn skin. If it’s that strong, what can an acid that strong be contained it? A can of Coke? Nope, Coke has a ph of 2.53. It’s kept in a container made of the same stuff you fry your eggs on. Teflon.
3. What is FM?
Radio waves, believe it or not (hint: believe it), are a form of light. Like microwaves, ultraviolet rays, x-rays, and gamma rays. Of course, it’s not within the visible light spectrum. Developed in 1895 by Guglielmo Marconi, an Italian inventor, radio was born when sent and received his first signal. In AM radio, where all the talk shows are, the AM stands for Amplitude Modification. Amplitude is the hight of the wave. So by changing the hight we can change the sound. FM, where the good stations are, stands for Frequency Modulation. Frequency is the rate at which the wave moves or how often the top (crest) of the waves pass in a second. By changing the frequency we can interpret the electromagnetic frequencies as sound. It’s all over my head, really. Even after reading about it for a half hour I’m still not sure how it works. All I know is that when I turn on the radio and hear Rag-n-Bone Man’s Human, I’m happy.
4. Do girls have pee pees?
Do they ever buddy. In our house, pee pee is a general term and can used for both the male and female genitalia. Yesterday I got to explain the differences, albiet carefully. I told Bang that his pee pee is called a penis. A girl’s pee pee, like his mother’s, is called a vagina. “Oh” he says. All the while I was explaining this I was sitting on the toilet doing my business.