This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and make it a warning light for a forklift or even a turn signal light for a ...

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Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to reduce ...

Objective To examine the effect of gender affirming hormones on athletic performance among transwomen and transmen. Methods We reviewed fitness test results and medical records of 29 transmen and 46 ...