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What Are the 17 Symptoms of PTSD?
science.howstuffworks.com/ptsd.htm
Post-traumatic stress disorder was first described by a doctor treating patients during the Civil War. Learn about post-traumatic stress disorder.
How Military Snipers Work
science.howstuffworks.com/sniper.htm
Military snipers are highly trained sharpshooters that can hit a target from great distances. Learn about military snipers and military sniper training.
How Ebola Works
health.howstuffworks.com/diseases-conditions/infectious/ebola.htm
Ebola has killed thousands in Africa since it first broke in 1975. And it's back again. HowStuffWorks looks at the virus and the science to stop it.
How Do Spacecraft Re-enter the Earth's Atmosphere?
science.howstuffworks.com/spacecraft-reentry.htm
Spacecraft reentry into the Earth is a tricky process. Find out how spacecraft re-entry works and why spacecraft are likely to burn up upon re-entry.
How do peregrine falcons fly so fast?
animals.howstuffworks.com/birds/peregrine-falcon-speed.htm
Peregrine falcons are one of the fastest animals on Earth. Learn how peregrine falcons get their speed and which animals should take cover.
Triceratops: Facts About the Life and Times of a Three-horned Dinosaur
animals.howstuffworks.com/dinosaurs/triceratops.htm
Triceratops - which literally means "three-horned face" - is one of the most spectacular and well-known of all dinosaurs. It shared the Cretaceous landscape with, and probably was preyed upon by, Tyrannosaurus rex.
2007 Hybrid Car Pictures
auto.howstuffworks.com/fuel-efficiency/vehicles/2007-hybrid-car-pictures.htm
Hybrid cars like the 2007 Ford Escape Hybrid are designed for fuel efficiency and low emissions. See a picture and profile of every 2007 hybrid.
Did Betsy Ross Really Make the First American Flag?
history.howstuffworks.com/history-vs-myth/betsy-ross-flag.htm
Did Betsy Ross really make the first American flag? Learn the myths and facts about Betsy Ross and the first American flag.
Is it greener to renovate or rebuild?
home.howstuffworks.com/home-improvement/remodeling/greener-to-renovate-or-rebuild.htm
Is it greener to renovate a home or to build a new one from scratch? It depends on your individual situation, and each has its own advantages.
How Wind-up Cell Phone Chargers Work
electronics.howstuffworks.com/gadgets/travel/wind-up-cell-phone-chargers.htm
Wind-up cell phone chargers are popular travel gadgets. Learn more about wind-up cell phone chargers at HowStuffWorks.