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You can make thousands of dollars by donating some time or body parts to science. But these procedures are not all painless, and not everyone can participate. Below is a short list, though be warned: these strategies aren't all easy money.NASA has recruited volunteers to spend two months in bed.
The research, which took place in Germany, was part of a study into how artificial gravity might affect the body. Participants were paid €16,500 ($18,500), but not as it...