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What is an oscilloscope used to measure?
science.howstuffworks.com/environmental/energy/question8.htm
An oscilloscope measures the voltage and frequency of an electric signal. Learn how it works.
How Do They Determine What Date Easter Will Occur On?
people.howstuffworks.com/culture-traditions/holidays-other/question80.htm
How do they determine what day Easter will occur on? It seems to be different every year.
How Are People Able to Breathe Inside a Submarine?
science.howstuffworks.com/transport/question83.htm
How are people able to breathe inside a submarine? What do they do to keep the air breathable?
What Is the Difference Between Jelly, Jam and Preserves?
recipes.howstuffworks.com/question84.htm
Wondered what the difference between jelly, jam and preserves is? And while we're on the topic, what exactly is Jell-O? Come find out the answers.
What is chewing gum made of?
recipes.howstuffworks.com/question86.htm
Ever wonder what chewing gum is made of and why it doesn't dissolve in your mouth? Find out your answers in this article about chewing gum.
What is a spider's silk made of?
animals.howstuffworks.com/arachnids/question87.htm
What is a spider's silk made of? Spider's silk is made up of chains of amino acids. Learn more about spider silk and spiders.
How do antibiotics work?
health.howstuffworks.com/medicine/medication/question88.htm
Where do antibiotics come from, and how do they fight bacteria?
What causes the loud banging noise in my home's pipes?
home.howstuffworks.com/question89.htm
What causes the loud banging noise in my home's pipes? For example, when I turn off the faucet I hear it. Is there a way to prevent it?
What Is Octane and How Does It Work?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question90.htm
Adding a chemical called tetraethyl to fuel can significantly improve the gasoline's octane rating. But what is octane? And how does it improve the gasoline we buy? Read on to explore this fascinating molecule.
How Much Does it Cost to Use an Electric Blanket?
home.howstuffworks.com/question91.htm
Can you tell me approximately how much it costs to leave an electric blanket on all day?