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10 Most Popular Towing Accessories -- and Why
Having the right towing accessories on hand is critical for a safe, enjoyable ride. Learn which 10 towing accessories many drivers won't go without.
Why Do Bridges Ice Before the Rest of the Highway?
science.howstuffworks.com/nature/climate-weather/atmospheric/question566.htm
I've noticed signs on the highway that warn "Bridge Ices Before Road." What causes bridges to ice before the rest of the highway?
Why do tools have "Drop Forged" stamped on them? What is drop forging?
home.howstuffworks.com/question376.htm
I have a number of tools (things like wrenches and C-clamps) that have the words "Drop Forged" stamped on the handle. What does that mean?
Why does your sweat sometimes smell like ammonia?
health.howstuffworks.com/skin-care/information/nutrition/ammonia-sweat-smell.htm
Have you noticed an ammonia sweat smell when you've been exercising? See what causes it and what you can do to stop ammonia sweat smell.
Why You Need More Lentils in Your Life
recipes.howstuffworks.com/lentils.htm
These colorful legumes pack a powerful punch when it comes to nutrition. Plus they're versatile, easy to cook and taste great.
Why Do Most Humans Have 23 Pairs of Chromosomes?
science.howstuffworks.com/life/genetic/23-pairs-chromosomes.htm
Nearly every living cell is made of DNA, and every chromosome contains exactly one molecule of DNA. But not all cells are made of the same number of chromosomes.
Why Is It So Hard to Make a Universal Flu Vaccine?
health.howstuffworks.com/wellness/preventive-care/universal-flu-vaccine.htm
Every year, a version of the flu vaccine must be developed, to compensate for the changes in the flu virus the year before. Will that ever end?
Why Is the U.S. Dollar the World's Currency?
money.howstuffworks.com/us-dollar-worlds-currency.htm
Around the world, people convert their money into U.S. dollars, making it the de facto global currency. But how did the U.S. dollar become so mighty?
Seasonal Affective Disorder: Why It Gets You Down and How to Manage It
science.howstuffworks.com/life/inside-the-mind/human-brain/seasonal-affective-disorder-news.htm
One in three people consistently struggle through the autumn and winter months with a type of depression known as seasonal affective disorder (SAD). Here are some tips for dealing with it.
Why is it so hard to understand the NASCAR penalty system?
auto.howstuffworks.com/auto-racing/nascar/nascar-basics/nascar-penalties.htm
The NASCAR penalty system are fairly new to the sport and really complicated. Learn more about the NASCAR penalty system