Tag: science & technology
Questions Related to science & technology
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Astronomical Unit
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Astronomy Unit
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Light Year
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none
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5,000,000 years
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5,000,000,000 years
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50,000,000,000 years
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No one knows
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At the planet
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Midway between the two
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Where the planet will be when the spacecraft reaches it
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all the above
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The rays of the sun bounce off the lens of the camera, projecting a reddish glow into the eyes of those photographed.
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An ineffective flash doesn't allow enough light for the actual eye color to be recorded in the photo.
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A flash that is too glaring often makes people blink at the same time the shutter snaps. Therefore, the subjects eyes are merely blurred, though it appears red in the actual photo.
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The pupil doesn't have enough time to constrict and the picture records the reflection of the red retina in the back of the eye.
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I don't know
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The yolk would turn green
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It would disintegrate completely
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The shell would turn rubbery
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The shell would split perfectly in two
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When you hear yourself speak regularly, the sound waves emanate through the tissue, bone, and other material, which changes its sound.
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When you hear yourself speak regularly, the sound waves bounce off who you are talking to, which changes its sound.
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The speakers of the cassette recorder distort the sound of your recorded voice.
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I don't know
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The sound has to travel through a lot of material (all the people in the stadium) before it reaches your ear.
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Light travels almost one million times faster than sound.
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Your brain anticipates what is going to happen visually, so you see the act a split second before it actually happens.
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You are too far away to hear the actual sound of the bat hitting the ball. What you hear is the echo of the actual sound.
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I don't know
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Hallucinations of dehydrated wanderers
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A mixture of gases that leak through fissures in the earth, mixing to create strange apparitions
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Miniature whirlwinds blow sand in tight circles that seem to take shape from a distance
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Optical phenomenon due to temperature differences of the surface and air directly above the surface
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Low lying clouds
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I don't know
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Near the horizon, the brain scales the size of the moon to trees and buildings.
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The moon is actually much closer when it is near the horizon, and thus appears larger.
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The physical act of rolling the eyes upwards (towards the sky) encourages the brain to interpret objects to be smaller than they are.
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When the moon is viewed near the horizon, one is actually viewing its reflection against the earth's ozone layer. This image is a shrunken version of the actual moon.