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Using Parallax for 3D Imaging

Using Parallax for 3D Imaging

Another application of parallax is the reproduction and display of 3D images. The key is to capture 2D images of the subject from two slightly different angles, similar to the way human eyes do, and present them in such a way that each eye sees only one of the two images. 

Virtual reality gaming headsets, such as the Oculus Rift and the HTC Vive, produce 3D virtual environments by projecting an image from a different viewing angle to each eye to simulate a parallax effect. 

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The Night Sky Isn't Two Dimensional

The Night Sky Isn't Two Dimensional

Parallax is the observed displacement of an object caused by the change of the observer's point of view. In astronomy, it is an irreplaceable tool for calculating distances of far away stars.

The night sky appears two-dimensional. 

However, it took astronomer...

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Breakthrough in Parallax Measurements and Galaxy Mapping

Breakthrough in Parallax Measurements and Galaxy Mapping

A real breakthrough in parallax measurement and therefore in determining distances of stars in our galaxy, the Milky Way, came with a mission called Hipparchos, after the ancient Greek astronomer that first used the method to estimate the distance of the moon. 

This mission, launched by ESA...

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Learning From The Parallax Effect

Learning From The Parallax Effect

The light is spread over an area four times larger, and it will be only one-fourth as bright as when the projector was half as far away. If you move the projector three times farther away, the light will cover 9 square feet and appear only one-ninth as bright. 

If a star measured in this ma...

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The History of Parallax Measurements in Astronomy

The History of Parallax Measurements in Astronomy

The first known astronomical measurement using parallax didn't involve a star but the moon. The ancient Greek astronomer Hipparchus reportedly used observations of a solar eclipse from two different locations to calculate the distance of Earth's celestial companion.

In 1672, Italian astrono...

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2013: GAIA Telescope

2013: GAIA Telescope

In 2013, ESA launched a telescope called Gaia that charts the positions, parallaxes, and proper motions of more than one billion stars. That number represents only about 1% of the actual number of stars in the galaxy, but that's enough for astronomers to extrapolate the observations to u...

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Measuring Large Distances

Measuring Large Distances

When it comes to measuring distances to other stars, the orbit of Earth around the 

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What Is Parallax?

What Is Parallax?

space.com

7 ideas

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CURATED BY

camille_aa

Mental health is health. Meditation nerd.

How stars are measured.

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