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Your search for "vacuum tube" returned 190 results
10 Window Cleaning Tips for Apartment Dwellers
Let the sun shine in with these window cleaning tips for apartment dwellers.
How Night Vision Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/nightvision.htm
Most of us instinctively think of darkness as a way to hide. Night vision has changed all that. So, how can you see someone standing over 200 yards away on a pitch-black night? Find out.
How Robots Work
science.howstuffworks.com/robot.htm
Robots are becoming increasingly sophisticated and lifelike. Learn about robots, the latest robot technology and how close we are to artificial intelligence.
What if I forgot to remove a piercing before an MRI?
science.howstuffworks.com/remove-piercing-before-mri.htm
The magnets found in an MRI machine are incredibly powerful. It can pull a stethoscope right out of a doctor's lab coat. So what would happen if you forgot to take out an earring? Ouch!
10 Silly Inventions That Became Wildly Famous
science.howstuffworks.com/innovation/inventions/10-silly-inventions-that-became-wildly-famous.htm
We've all seen TV ads for products that were just completely silly, but then became overnight sensations. Which ones made our list?
How MRI Works
science.howstuffworks.com/mri.htm
An MRI scan is the best way to see inside the human body. See what happens during an MRI scan and learn about MRI images and MRI safety.
10 Gadgets That Will Make Dad's Day
electronics.howstuffworks.com/gadgets/other-gadgets/10-gadgets-that-will-make-dads-day.htm
These gadgets are great for Father's Day or for other birthdays and celebrations. See 10 gadgets at HowStuffWorks that will make dad's day.
1954 Mercury Sun Valley
auto.howstuffworks.com/1954-mercury-sun-valley.htm
The 1954 Mercury Sun Valley featured a plastic see-through roof for ultimate visibility. See pictures and a profile of the 1954 Mercury Sun Valley.
How to Troubleshoot a Heat Pump
home.howstuffworks.com/home-improvement/heating-and-cooling/how-to-troubleshoot-a-heat-pump.htm
A heat pump not only heats your home during the winter, it also cools it during the summer. Proper maintenance is important. Find out how to troubleshoot a heat pump.
House Painting Tools
home.howstuffworks.com/home-improvement/home-diy/painting/house-painting-tools.htm
Different painting tools are right for different projects. Learn to choose among house painting tools, and create a lasting paint job.