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Your search for "time travel" returned 802 results
Polaris Star: How to Spot the North Star in the Night Sky
science.howstuffworks.com/north-star.htm
Polaris, also known as the North Star, is almost exactly over the celestial North Pole, making it extremely useful for navigation (and for making wishes on, as well).
How Magnets Work
science.howstuffworks.com/magnet.htm
Magnets produce magnetic fields and attract metals like iron, nickel and cobalt. They're used in all sorts of applications but how are they made and how do they work?
How LRAD Works
science.howstuffworks.com/lrad.htm
What makes sound a weapon? Review the basics of sound and discover exactly how the LRAD produces its "beam of sound." We'll also explore LRAD's hailing and warning abilities and other uses for sound.
Can we harvest the energy of lightning?
science.howstuffworks.com/environmental/energy/harvest-energy-lightning.htm
From corn to solar power, scientists have been searching every crevice of the Earth to find reliable sources of alternative energy. Could lightning be the answer?
Hubble Captures New Images of Jupiter's Northern Lights
science.howstuffworks.com/hubble-aurora-images-jupiter.htm
Hubble captures new images of Jupiter's aurora. Learn more about these aurora images in this HowStuffWorks Now article.
How soon will we be able to create a moon base?
science.howstuffworks.com/moon-base.htm
A moon base could allow us to further explore the solar system. Learn about a moon base and find out how soon we will be able to construct a moon base.
28 Industrial Revolution Inventions That Shaped Our World
science.howstuffworks.com/innovation/inventions/5-industrial-revolution-inventions.htm
Many inventions during the Industrial Revolution caused Europeans and Americans to move from an agricultural economy to an industrial one and changed the world forever. What were the top 10?
How Ozone Pollution Works
science.howstuffworks.com/environmental/green-science/ozone-pollution.htm
We want the ozone layer, but we don't want ozone pollution... Good in the atmosphere but bad on the ground? Find out about ozone pollution, how it affects you and what you can do about it.
Could a single volcanic eruption destroy all life on Earth?
science.howstuffworks.com/nature/natural-disasters/single-volcanic-eruption-destroy-all-life.htm
The question about supervolcanoes, it turns out, isn't whether one could destroy all life on Earth. It's when will it do it again. Wait, what?
Behind the X Prize
science.howstuffworks.com/x-prize.htm
We know who won - top-runner SpaceShipOne. We know what the team receives for that accomplishment: $10 million and an obscenely gigantic trophy. But what about the story behind the contest? Learn about the rules, restrictions, red tape, test crashes, successful launches and the technological innovations that may get you into sub-orbit sooner than you think.