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Earth's Oldest Color Was Pink
science.howstuffworks.com/life/cellular-microscopic/earths-oldest-color-was-pink.htm
Scientists have found that ancient fossilized chlorophyll was dark red and purple in its concentrated form, which means that when diluted by water or soil, it would have lent a pink cast to earth and sea.
What's Your Goddess Name?
play.howstuffworks.com/quiz/whats-your-goddess-name
Goddesses are personifications of power and concentrated examples of personality traits. They were worshiped for what they could do on behalf of humans but only doled out the aid when the mood struck them. What's your goddess name?
How Does a Breathalyzer Work?
electronics.howstuffworks.com/gadgets/automotive/breathalyzer.htm
A roadside sobriety test of touching one's nose or walking a straight line cannot rule out a high blood alcohol concentration. That's why the Breathalyzer is such a game-changer. But how does a Breathalyzer work? Read on to find out!
Could a gamma-ray burst wipe out all life on Earth?
science.howstuffworks.com/gamma-ray-burst-life-earth.htm
When a huge star collapses, it releases massive amounts of radiation in concentrated streams. If one of those streams hit Earth, it wouldn't be pretty. But where should we put "gamma-ray bursts" on our list of anxieties?
How Solar Cooking Works
science.howstuffworks.com/environmental/green-science/solar-cooking.htm
If you've ever seen a kid frying ants with a magnifying glass, you know that the concentrated power of the sun can create great heat. But what if that heat were applied to something a bit more productive -- something like cooking food?
10 Most Expensive Zip Codes (No, 90210 Doesn't Make the Cut)
money.howstuffworks.com/personal-finance/most-expensive-zip-codes.htm
Luxury real estate isn’t just about square footage and designer finishes; it's also about location. The 10 most expensive zip codes in the U.S. reveal where affluence concentrates, with sky-high median sale prices and jaw-dropping properties.
How Does a Fresnel Lens Work? The Magic Behind the Glass
science.howstuffworks.com/question244.htm
I have a thin piece of plastic mounted on the back window of my RV. It magnifies things so I can see better when I'm backing up. How can such a thin piece of plastic magnify things? A regular glass magnifying lens would have to be curved on both sides and much thicker.
How Your Kidneys Work
health.howstuffworks.com/human-body/systems/kidney-urinary/kidney.htm
The kidneys perform several important tasks. Learn about kidney processes and how the kidneys maintain water volume and balance and regulate blood composition.
How Your Lungs Work
health.howstuffworks.com/human-body/systems/respiratory/lung.htm
You couldn't breathe without your lungs and you do it without even thinking about it. So, how do your lungs manage this amazing feat?
What's the difference between cologne, eau de parfum and perfume?
lifestyle.howstuffworks.com/style/body-scents-fragrances/cologne-eau-de-parfum-and-perfume.htm
Are you wondering what's the difference between cologne, eau de parfum and perfume? Learn what's the difference between cologne, eau de parfum and perfume.