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2014
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Why are modern locomotives powered by diesel generators that power electric motors? How can this be more efficient/powerful than a direct mechanical connection or hydraulic?
1811 upvotes
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r/askscience
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How do car A/C systems operate at a wide range of RPMs? Do compressors require more torque from the engine when the fan is low vs high?
85 upvotes
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r/askscience
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How does Zeolite absorb and release energy?
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Why are modern locomotives powered by diesel generators that power electric motors? How can this be more efficient/powerful than a direct mechanical connection or hydraulic?
1811
askscience
--
10
9
8
7
6
5
4
3
2
1
0
How do car A/C systems operate at a wide range of RPMs? Do compressors require more torque from the engine when the fan is low vs high?
85
askscience
--
10
9
8
7
6
5
4
3
2
1
0
How does Zeolite absorb and release energy?
2
askscience
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10
9
8
7
6
5
4
3
2
1
0
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