This image shows juniper leaves and bluish “berries”, which in fact are not berries at all, but mature ovulate cones.

Everything You Need to Know: Is that a berry?

Cucumbers aren't vegetables, and neither are bell peppers. Raspberries are fruit, but they aren't berries, and neither are blackberries. But pumpkins, oranges, and bananas are all berries. What's the story here, and how can you figure out what's what in your kitchen? Read on for answers in this edition of Everything You Need to Know [...]

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An illustration of a coronavirus provided by the CDC (public domain). The virion appears roughly spherical and has protein "spikes" projecting from its surface.

Everything You Need to Know About Coronavirus

Most of our content here is physics-focused and lighthearted, but we want to offer you a reliable, cohesive source of scientific information about SARS-CoV-2 (coronavirus) and the COVID-19 pandemic during this challenging time. To see our collected information on this important topic, please visit this page. Please check back regularly for updates -- we'll be [...]

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Everything You Need to Know About Electromagnetic Waves

How does the world look to a bee? What exactly is different among different colors of light? We’ll consider these questions and more in this edition of Everything You Need to Know About…

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Everything You Need to Know About Energy

What happens when you take a blowtorch to a water balloon? What can we learn by setting a chocolate-chip cookie on fire? On this page we’ll answer all your burning questions about energy.

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Everything You Need to Know About Force & Motion

What can you do with 100 battery-powered toy cars? Why does a rocket go up when its thrusters are pointing down? Why should you carry your grocery bags at your elbows instead of in your hands? The answers to these questions and more lie ahead.

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Everything You Need to Know About Oscillations & Waves

What happens when you hit a water balloon with a baseball bat? Why does tightening and loosening a guitar string change the sound it produces? Can you actually catch a wave? Read on for an investigation into the answers to these questions and more!

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Everything You Need to Know About Fluids in Motion

What keeps airplanes up? What happens to Earth’s atmosphere as the planet spins? For answers to these questions and more, read on!

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Everything You Need to Know About Electricity

What happens when you plug a pickle into an electrical outlet? Just what is the “static” that makes your socks stick together when they come out of the dryer? Here we’ll explore electric charges, forces, and fields.

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Everything You Need to Know About Magnetism

You probably have magnets stuck to your refrigerator at home. But there are also magnets in the power plant that provides electricity to your home. What are those magnets up to, and how do they do what they do?

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Everything You Need To Know About Sound

What happens when you blow a trumpet through a bubble? You’ve heard of an optical illusion—how about an auditory illusion? The resources on this page answer these questions and more!

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