| Mechanical Engineering |
Q: When planning a wind farm, how are wind resources estimated? And if the average wind speed is known at 10 meters is there a general rule for estimating the wind speed at higher elevations (for example, 40 to 50 meters)?
A: The wind resource at a wind farm can be estimated in two ways: by measurement or by modeling. As for estimating windspeed, if it is known at 10 m (33 ft) above the ground level, it is possible to estimate the wind speed at any other height [up to about 200 m (660 ft)] by use of a logarithmic wind profile.
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| Physics |
Q: Why does a baseball curve in flight?
A: With pitched baseballs, the pitcher imparts spin on the ball at the moment of release. The spin of the ball in combination with the seams causes the air flowing around the ball to be redirected, producing the Magnus force that redirects the ball.
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| Computing & Information Technology |
Q: Technologically, is it possible to make a conscious robot? (Answer 1)
A: Such a robot would most likely have a computer "brain." Before addressing the question, we need to consider if a computer could be conscious. This question opens others, all within the areas of computer science and artificial intelligence.
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