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Our Amazing Solar System
science.howstuffworks.com/46011-our-amazing-solar-system.htm
Our solar system has a variety of small objects such as asteroids, comets, stars, meteors, and moons. Find out how they affect life on Earth.
Overtone
science.howstuffworks.com/overtone-info.htm
Overtone is a sound accompanying the main tone produced by a vibrating body. The number and loudness of overtones determine the timbre, or tone color, of a musical sound.
PEMDAS: Remembering Math's Order of Operations
science.howstuffworks.com/math-concepts/PEMDAS.htm
A simple math problem may seem to some of us like an inscrutable pile of numbers and symbols, just waiting to trip us up. PEMDAS to the rescue!
Pantheon vs. Parthenon: What's the Difference?
science.howstuffworks.com/engineering/structural/pantheon.htm
It's easy to confuse the Parthenon and the Pantheon. The names are so similar, and they're both ancient ruins. But despite those similarities, the two structures are very different.
Panzerkampfwagen VI Tiger I
science.howstuffworks.com/panzerkampfwagen-vi-tiger-i.htm
The Panzerkampfwagen VI Tiger I was a formidable battle tank in World War II. Learn about the design and history of the Panzerkampfwagen VI Tiger I.
Pareidolia: Why We See Faces in Almost Everything
science.howstuffworks.com/life/inside-the-mind/human-brain/pareidolia.htm
We see faces in clouds, on buildings - heck, in grilled cheese sandwiches. But why is that? And how is this a help to our survival?
Party Trick Breakdown: Why Do Balloons Stick to Hair?
science.howstuffworks.com/why-do-balloons-stick-to-hair.htm
Scientists have figured out why some objects stick more to each other. And it's a very cool trick.
Paul Berg
science.howstuffworks.com/dictionary/famous-scientists/biologists/paul-berg-info.htm
Berg, Paul (1926-), an American biochemist and molecular biologist, has been at the forefront of genetic engineering, both as an inventor of a pioneering procedure and as an advocate concerned about the risks of genetic research.
Perpendicular Lines Create All the Right Angles in the World
science.howstuffworks.com/math-concepts/perpendicular-lines.htm
If two lines are perpendicular to the same line, they are parallel to each other and will never intersect.
Petrichor: What Causes the Earthy Smell After Rain?
science.howstuffworks.com/nature/climate-weather/atmospheric/question479.htm
There's often a strong, quite pleasant, smell right after a rain shower. What accounts for petrichor, the 'smell of rain'?