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How Does Relative Humidity Affect How I Feel Outside?

science.howstuffworks.com/nature/climate-weather/atmospheric/question651.htm

We hear about humidity in just about every weather report on the nightly news. There are several different ways meteorologists measure humidity, but relative humidity is the most common measurement. What is relative humidity, though?

How Does a Blood Pressure Gauge Work?

science.howstuffworks.com/innovation/everyday-innovations/question146.htm

It's technical name is sphygmomanometer and it takes your blood pressure. But how does it do that?

How Does a Forest Fire Benefit Living Things?

science.howstuffworks.com/environmental/green-science/how-forest-fire-benefit-living-things-.htm

Forest-fire prevention has been a touchstone of American consciousness since the creation of Smokey the Bear in the 1940s. But now, environmental experts believe that some amount of fire is good for the forest too.

How Does a Fresnel Lens Work? The Magic Behind the Glass

science.howstuffworks.com/question244.htm

I have a thin piece of plastic mounted on the back window of my RV. It magnifies things so I can see better when I'm backing up. How can such a thin piece of plastic magnify things? A regular glass magnifying lens would have to be curved on both sides and much thicker.

How Does a Lie Detector (Polygraph) Work?

science.howstuffworks.com/question123.htm

You may know a bit about polygraphs, but do you know which physical reactions it actually monitors?

How Does a Seismograph Work?

science.howstuffworks.com/environmental/earth/geophysics/question142.htm

A seismograph can accurately measure the movement of the Earth during a quake. How does a seismograph work, though, and what is the Richter scale that is associated with earthquakes? Learn the answers to these questions in this article.

How Does a Silencer Work?

science.howstuffworks.com/question112.htm

How in the world can a gun silencer work? How can you possibly take an explosive noise that can damage your hearing and turn it into a little "ffft" sound?

How Does an Invisibility Cloak Work?

science.howstuffworks.com/invisibility-cloak.htm

With optical-camouflage technology, the invisibility cloak is a reality. Learn what it is.

How Donating Your Body to Science Works

science.howstuffworks.com/life/biology-fields/donating-body-to-science.htm

There's a great need for people to donate their bodies to science but not many people think about doing it. What happens to your body after you make that decision?

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