Search Results | 3d
Your search for "3d" returned 114 results
How 3-D Glasses Work
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NASA's Mars rovers are sending 3-D images to Earth, so we can see depth and texture on the Martian surface. And how do we see this depth and texture? 3-D glasses, of course! Check out how they work.
The Most Detailed 3-D Sky Map Ever of the Galaxy's 100 Billion Stars
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The ESA Gaia satellite observatory created a billion-star 3-D map of the Milky Way. Learn more about astronomy in this HowStuffWorks Now article.
How Holograms Work
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If you want to see a hologram, you don't have to look much farther than your wallet. But the most impressive holograms are large scale and illuminated with lasers or displayed in a darkened room with carefully directed lighting. Learn how a hologram, light and your brain work together make clear, 3-D images.
How CAT Scans Work
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CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides.
How 4D Printing Works
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Is 4D printing much different from 3-D printing? What if we told you some tech insiders are betting it has the potential to change industries from fashion to health care to defense?
How Death Masks Work
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The best photograph can't touch one. A death mask, in all its 3-D glory, is the last likeness of a loved one that a family can own. After all, it vividly preserves what some consider to be the very essence of a person -- the face.
The 4th Dimension: Where Science and Imagination Collide
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Can we see the fourth dimension or is it something that is beyond our grasp? Find out if it is possible to see the fourth dimension in this article.
How Many Dimensions Are There?
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A dimension is how we explain the ability to move through space. Are there more to dimensions than just spatial movement? Learn about dimensions.
The Scutoid: How We Discover New Shapes
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Spanish researchers recently uncovered a new geometric shape that allows human tissue to curve. But how?
How Ultrasound Works
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Ultrasound lets us peek into the human body to see everything from heart valves to a moving baby. But how do sound waves give us a picture?