1:B - Scientists think that there are a whopping 200 billion trillion stars. That’s the number of stars in our galaxy, the Milky Way (about 100 billion), multiplied by the number of galaxies (about 2 ...
Engineeringness on MSNOpinion
How do magnets really work?
Magnets can attract or repel without even touching, but how does that happen? This video explains how magnetic fields work ...
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