World of Engineering
@engineers_feed
The most fun way to learn something new everyday. Brother page of @stats_feed YouTube https://t.co/rAUIl0V1xC
Joined August 2015
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Galileo tracked sunspot movements and discovered that the Sun rotates. It is now known that sunspots close to the equator rotate once each 25 days and sunspots near the poles rotate each 38 days
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