The Instagram post also states that gas pressure can't exist without a "container." This process helps drive the formation of Earth's jet streams – east-west flowing bands of wind in the upper atmosphere, according to the National Weather Service.įact check: Ample evidence the Earth is round and rotating, contrary to persistent social media claims Air pressure is because of gravity Instead of circulating in a straight pattern, the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths." "If the Earth did not rotate and remained stationary, the atmosphere would circulate between the poles – high-pressure areas – and the equator – a low-pressure area – in a simple back-and-forth pattern," reads the NOAA website. "But because the Earth rotates, circulating air is deflected. And this movement is evidenced by the behavior of Earth's atmosphere. We can also (observe) the apparent motion of different stars to work out how we're orbiting around the center of the galaxy."Įarth rotates in addition to moving through space. "As our position changes, the apparent position of nearby stars relative to more distant ones changes as well. "One way we can detect Earth's motion around the sun is through parallax," she said. Self-gravity pulls all of Earth's mass towards its center, ultimately forming a spherical shape.įact check: Soda experiment does not disprove existence of gas planets Earth moves through space and rotatesĬontrary to the post's claims, Earth moves as it orbits the sun, and, on a larger scale, the center of the Milky Way galaxy, Rebekah Dawson, an astronomer at Pennsylvania State University, told USA TODAY in an email. In addition to being directly observable, Earth's curve is predicted by the laws that govern gravitational force. "The only object that casts a circular shadow no matter how you shine a light across it is a sphere," he said. "Any other shape would not be able to cast a round shadow under this variety of circumstances." ![]() Earth's shadow appears round on the moon regardless of the time of year, time of night, or direction the shadow moves. Humans and spacecraft that have reached these heights have photographically documented Earth's curve.Įarth's curve can also be observed during a lunar eclipse, Steffen said in a Q&A published on the University of Nevada website. "40 miles is 1% of the curvature of the radius of the Earth." "You have to be about a percent or so higher than the radius of the surface of the Earth (to see the curve)," he said. USA TODAY reached out to the Instagram user who shared the post for comment.įollow us on Facebook! Like our page to get updates throughout the day on our latest debunks Earth is a globe shape that curvesĮarth's curve is directly observable, but because of Earth's size, observers have to get about 40 miles above the surface to see it, Jason Steffen, a mathematician and physicist at the University of Nevada, previously told USA TODAY. And Earth's atmospheric pressure is caused by gravity. Earth's curve and movement are detectable through various means, according to researchers. The meme also states that gas pressure – ostensibly referring to Earth's atmospheric pressure – is not possible without a "container."īut these claims are wrong. These statements include claims that Earth's curve and movement can't be measured. ![]() On a picture of the Earth titled "Space Ball Earth Top Failures," the post lists a series of statements that purportedly support the long-debunked theory that Earth is flat. ![]() 27 Instagram post that garnered more than 900 likes in two months. "Earth can’t be a spinning space ball if there is no curve, motion or gas pressure without a container," reads the caption on a Sept. Some social media users are sharing a meme that claims to present evidence that Earth is flat instead of spherical. Watch Video: Our moon has been slowly moving away from Earth for billions of years The claim: Earth isn't curved or moving air pressure couldn't exist 'without a container'
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