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Tanzanite Is Africa's Real Blue Diamond
science.howstuffworks.com/environmental/earth/geology/tanzanite.htm
Tanzanite is so rare, it is sourced from just an 8-square-mile (20-square-kilometer) area in Tanzania. It was first discovered in the late 1960s and it burst onto the jewelry scene thanks to Tiffany & Co.
Pink Quartz Meaning: A Look at the Real Love Stone
science.howstuffworks.com/environmental/earth/geology/rose-quartz.htm
This beautiful pink quartz is found in numerous places throughout the world and is thought to be associated with unconditional love.
Why Did Cars Have 'Suicide Doors' and Do They Still Exist?
auto.howstuffworks.com/suicide-doors.htm
The popular name for car doors that opened from the rear rather than the front is "suicide doors". Why are they called that, and do any cars have this feature?
Why You Want Your Kid's School Bus to Be Electric
auto.howstuffworks.com/fuel-efficiency/vehicles/electric-school-bus-news.htm
Electric school buses are a very, very good idea. They cut greenhouse emissions, for one, but there are several more reasons the U.S. should transition its massive diesel-fueled school bus fleet to electric.
Wasted Bread Is Being Brewed Into Craft Beer
recipes.howstuffworks.com/wasted-bread-is-being-brewed-into-craft-beer.htm
Toast Ale is on a quest to reduce food waste and make craft beer while they're at it. Learn about how wasted bread is being turned into craft beer.
5 Donation Tips for (Really) Helping Disaster Victims
money.howstuffworks.com/5-donation-tips-for-really-helping-disaster-victims.htm
HowStuffWorks talked to experts in disaster relief to find out the best ways to help people in times of disaster.
The IRS Already Has Our Data So Why Do We Still File Taxes?
money.howstuffworks.com/personal-finance/personal-income-taxes/us-return-free-tax-news.htm
At least 30 countries have return-free filing systems, including Denmark, Sweden, Spain and the United Kingdom. Why doesn't the U.S.?
How much horsepower does a supercharger add?
auto.howstuffworks.com/how-much-horsepower-does-supercharger-add.htm
How much horsepower does a supercharger add? Learn more about superchargers and engine performance at HowStuffWorks.
Why are blueprints blue?
science.howstuffworks.com/engineering/structural/blueprints-blue-.htm
Why are blueprints blue and not some other color? There's a specific chemical process behind it, and its discovery has all the elements of a dark fairy tale.
Safe Hypermiling Techniques
auto.howstuffworks.com/fuel-efficiency/fuel-economy/safe-hypermiling-techniques.htm
Hypermiling can be dangerous -- but there are a few safe techniques you can practice. Learn more about safe hypermiling techniques at HowStuffWorks.