This is the kind of question, “How do we get to Mars?” that normally would
Read more...The Moon is being pulled toward the Earth, but it’s forward momentum causes it to
Read more...This would be so cool. Everyone would want one, even if they couldn’t afford it.
Read more...Astronauts are not weightless. They experience microgravity. As close to the earth that they are,
Read more...Yes it would return to Earth. The escape velocity for Earth is more than 11
Read more...Solution to Newton’s Cannon problem I proposed earlier, explained in this nice YouTube video.
Read more...Let’s revisit Sir Isaac Newton’s cannon. In the above mentioned article we had placed a
Read more...In two previous blog posts about Newton’s Cannon and Joe Drops the Ball I posed
Read more...Because of Joe’s ball, the Earth may fall into the sun and the moon may fall from the sky.
Read more...Satellites don’t have or need engines to keep them in orbit. Once launched at their
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