Helicopter Bolt Cost: Why One Bolt Costs $8,000
How certification, traceability, testing, and low-volume production make some helicopter fasteners cost thousands of dollars, and why you cannot substitute…
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What Is Recombinant Insulin and How Is It Made?
Recombinant insulin is human insulin made by genetically engineered microbes rather than by extracting the hormone from animal pancreases. It…
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Is Dr Pepper Cola or Root Beer?
Dr Pepper is neither a cola nor a root beer. It is a pepper-type soft drink with a proprietary blend…
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What Is Project West Ford and How Did It Work?
Project West Ford was a U.S. Cold War experiment that released roughly 480 million copper needles into orbit to create…
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How to Watch the Original Star Wars (1977) Theatrical Cut
How to watch the original Star Wars theatrical cut comes down to a few legal options. The U.S. Library of…
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Is Pink Noise for Sleep Effective?
Pink noise for sleep is not reliably effective. In a randomized sleep-lab study, continuous pink noise at 50 decibels reduced…
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What Is Elastocaloric Cooling and How Does It Work?
Elastocaloric cooling is a solid-state refrigeration method that uses shape-memory alloys to pump heat by mechanically stressing and unstressing the…
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Can Apes Pretend?
Yes, apes can pretend. New controlled experiments with a symbol-trained bonobo named Kanzi show that a great ape can participate…
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Is Moon Dust Toxic?
What lunar regolith does to human health and equipment, and how NASA plans to control it on Artemis missions Is…
