Why Can't We Feel the Earth Spin?

Why can't we feel the Earth spin? At the equator, the spinning Earth carries you along at about 1,040 mph (about 1,674 km/h), yet you can't feel a thing. That isn't because the speed is too small to notice: your body can't feel speed at all, only changes in speed or direction. This video also works out where 1,040 mph comes from (24,901 miles, or 40,075 km, around the equator in one turn of 23 hours 56 minutes), why New York City moves at about 790 mph (1,269 km/h), and what Galileo's ship and Newton's first law tell us. Then it shows that the spin's turn gives only about 0.034 m/s², about 0.35% of gravity: about half a pound (0.24 kg) off a 150-pound (68 kg) person on a bathroom scale. The same goes for our 67,000 mph (107,200 km/h) trip around the Sun. Try it yourself: ▶ https://www.metric-conversions.org/speed/miles-per-hour-to-kilometers-per-hour.htm Chapters: 0:00 The question 0:20 Where the number comes from 0:59 Speed versus acceleration 1:52 The Earth is turning, though Sources: • NASA Imagine the Universe: Ask an Astrophysicist (Earth): https://imagine.gsfc.nasa.gov/ask_astro/earth.html • NASA Earth Fact Sheet: https://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html • Miles per hour to Kilometers per hour conversion calculator: https://www.metric-conversions.org/speed/miles-per-hour-to-kilometers-per-hour.htm • New York City (Wikipedia): https://en.wikipedia.org/wiki/New_York_City • Galileo's ship (Wikipedia): https://en.wikipedia.org/wiki/Galileo%27s_ship • NASA Glenn: Newton's Laws of Motion: https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/newtons-laws-of-motion/ • NIST CODATA: standard acceleration of gravity: https://physics.nist.gov/cgi-bin/cuu/Value?gn Is there anything else you'd like us to cover? Let us know in the comments below.