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How Off-peak Cooling Systems Work
home.howstuffworks.com/home-improvement/heating-and-cooling/off-peak-cooling-systems.htm
Off-peak cooling systems can help cool your home in an energy-efficient way. Learn about off-peak cooling systems.
How Liquefied Petroleum Gas Works
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/lpg.htm
You probably know it as the stuff that fuels a gas grill or a Zippo lighter, but that's just the beginning. People are modifying cars to run on the stuff. Learn all about liquefied petroleum gas.
Can you guess how much these everyday items used to cost?
play.howstuffworks.com/quiz/can-you-guess-how-much-these-everyday-items-used-cost
Thanks to the relentless march of inflation, prices of everything, from housing to a gallon of milk, continue to rise over time. People living in decades past had to pinch pennies and stretch dollars to afford necessities or splurge on a taste of luxury, just like modern families. Take our quiz to see if you can guess how much everyday items cost in days past!
What Do You Know About Supercars?
play.howstuffworks.com/quiz/what-do-you-know-supercars
Are you super big on supercars? Does your automotive knowledge out-accelerate everyone else's? These amazing machines really push the limit, and with this quiz you'll test yours. Take the quiz now!
Why Do We Sleep?
science.howstuffworks.com/life/inside-the-mind/human-brain/sleep.htm
Every animal sleeps -- some more than others -- but why they do it is a mystery to scientists. Is sleep more than just beauty rest? Could skimping on it kill you? And how much do you really need?
1940 Packard One Twenty
auto.howstuffworks.com/1940-packard-one-twenty.htm
The 1940 Packard One Twenty club sedan is a rare collectible due to low pre-World War II production. Explore features of the 1940 Packard One Twenty.
Frying Foods Questions
recipes.howstuffworks.com/tools-and-techniques/frying-foods-questions.htm
Frying foods gives you a crisp and golden outside and a moist and tender inside. Learn more about frying foods questions here.
10 High-tech Tools on the Typical Farm
electronics.howstuffworks.com/everyday-tech/10-high-tech-tools-farm.htm
The modern farm has more in common with Silicon Valley than you might think. Here are 10 high-tech tools you may find on a farm from HowStuffWorks.
What is the angel hair phenomenon?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/angel-hair-phenomenon.htm
The "angel hair phenomenon" sounds like a best-selling pasta dish from your local Italian restaurant. Or maybe we're just hungry. But if this phenomenon isn't related to tasty cuisine, what's it all about -- and are angels actually involved?
Can You Correctly ID These Common Pieces of Construction Equipment?
play.howstuffworks.com/quiz/can-you-correctly-id-these-common-pieces-of-construction-equipment
Can you differentiate between a Phillips screwdriver and a flathead? Do you know what a crawler-loader is? If so, this is the quiz for you! Test your knowledge of all different types of construction site equipment with this ultimate challenge!