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What Is Avogadro's Number?
science.howstuffworks.com/avogadros-number.htm
That's one seriously big number, and technically Amedeo Avogadro didn't even come up with it. So how did the Italian chemist make such an indelible (numerical) mark on the wonderful world of chemistry?
How Animal Imprinting Works
animals.howstuffworks.com/animal-facts/animal-imprinting.htm
Animal imprinting concerns how some species of animals learn during a short period immediately after birth. Learn more about animal imprinting.
Can you really not get pregnant while breast-feeding?
Can you really not get pregnant while breast-feeding? Find out what science says about whether you can get pregnant while breast-feeding.
9 Cold Cases That Have Totally Baffled Investigators
people.howstuffworks.com/cold-cases.htm
Despite how hard investigators work, some crimes just baffle even the most gifted detectives. They go cold. That's where these nine cases stand. Will they ever be solved?
Rahab: The Biblical Prostitute in the 'Faith Hall of Fame'
people.howstuffworks.com/rahab.htm
She's the hero of one of the best-known Bible stories and also described as one of Jesus' ancestors, even though she was a Canaanite prostitute. Who was Rahab, really?
How the Word 'Hack' Became So Hacked
people.howstuffworks.com/word-hack.htm
The word "hack" has evolved so much over time that, instead of suggesting a shadowy criminal act, it means you've found the best way to do something.
How the James Webb Space Telescope Works
science.howstuffworks.com/james-webb-space-telescope.htm
NASA's James Webb Space Telescope will look back in time to see the earliest stars in creation, and serve as the premier deep space observatory for the next decade. Ready to meet the mighty Webb?
The Glass Armonica: A Harmonious Invention by Benjamin Franklin
science.howstuffworks.com/innovation/inventions/glass-armonica.htm
Learn about the Glass Armonica, a unique musical instrument invented by Benjamin Franklin. The glass armonica produces beautiful, haunting sounds by rubbing wet fingers on tuned glass bowls.
What if a black hole formed near our solar system?
science.howstuffworks.com/science-vs-myth/what-if/what-if-black-hole-formed-near-solar-system.htm
Black holes have serious pull, and they're not afraid to use it. Could one of these skulking bad boys ever arise in our home, sweet (solar system) home?
Understanding Panic Attacks
health.howstuffworks.com/mental-health/anxiety/panic-attack.htm
A panic attack can strike from out of nowhere and be terrifying to the person who experiences the panic attack. What causes a panic attack?