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How Marijuana Works
science.howstuffworks.com/marijuana.htm
Marijuana isn't just a recreational drug for hippies and philosophy majors -- its psychoactive history ranges from Egyptian mummies to modern U.S. politics. What's the big deal about this leafy, green plant?
How the Star Wars Program Didn't Work
science.howstuffworks.com/star-wars-program.htm
Back in 1983 when the Cold War was in full swing, the U.S. was looking for an effective new tactic to deter a nuclear strike. The "Star Wars" missile defensive initiative, however, wasn't it. Why not?
How Electromagnets Work
science.howstuffworks.com/electromagnet.htm
Whether they're sorting out scrap metal or helping us unlock the secrets of the universe, electromagnets are pretty nifty devices. What's so great about magnetism on demand? We'll electrify you with the details.
How Can Light Kill Viruses?
science.howstuffworks.com/life/cellular-microscopic/light-virus.htm
Hand sanitizers can only get you so far in preventing a viral infection. Scientists are discovering how visible light can be used to destroy viruses. Learn about the laser technique and what it means for the future.
10 Types of Insulation
home.howstuffworks.com/home-improvement/construction/materials/10-types-of-insulation.htm
Most of us know that a house must have a well-insulated building envelope to be structurally sound. But we may not know how important this shell really is. These are 10 types of insulation that can protect your home.
How the Year 2000 Problem Worked
computer.howstuffworks.com/y2k.htm
Until recently, computer programmers used two-digit placeholders for the year portion of the date in their software. Guess what happened when we realized the system couldn't account for the first two numbers? Mass panic.
How Plasma Rockets Work
science.howstuffworks.com/plasma-rockets.htm
Imagine if we could get to Mars in 40 days instead of seven months! It could happen if we used plasma rockets, which travel at 34 miles per second. But how do we make this a reality?
How Becoming a Doctor in the Army Works
science.howstuffworks.com/military/army-careers/becoming-doctor-in-army.htm
Doctors in the U.S. Army may tend the wounded in a combat zone but they're just as likely to be taking care of soldiers on an army base or doing research. Find out the benefits and challenges of becoming an army doctor.
What Is An Inverter? Explaining DC/AC Power Supplies
electronics.howstuffworks.com/gadgets/automotive/dc-ac-power-inverter.htm
You may have heard about DC/AC power inverters, but do you really know what these useful gadgets can do? Learn about DC/AC power inverters at HowStuffWorks.
How Electroconvulsive Therapy Works
science.howstuffworks.com/life/inside-the-mind/human-brain/electroconvulsive-therapy.htm
Most of us don't intuitively classify electroshocks as therapeutic, but this 1950s-era treatment has changed a lot since it was first introduced. When and why do mental health experts now turn to it?