I found an answer from www.quora.com

**Can you prove the earth is not flat only by using laws of physics and** ...

**Can you prove the earth is not flat only by using laws of physics and** .... In fact
knowing some math can more than do the job of proving the Earth is round.

For more information, see **Can you prove the earth is not flat only by using laws of physics and** ...

I found an answer from www.khanacademy.com

Introduction to gravity (video) | Khan Academy

Basics of gravity and the **Law** of Universal Gravitation. ... Your browser **does not**
currently recognize any of the video formats available. .... That is why they are
able to travel at the speed of light (C) and **not just** below it. ..... 2) Second, **you**
know that all objects on the **Earth's** surface **will** fall **with** a constant acceleration,
known ...

For more information, see Introduction to gravity (video) | Khan Academy

I found an answer from www.bbc.com

BBC - **Earth** - Why is there something rather than nothing?

Nov 6, 2014 **...** Some physicists think they **can** explain why the universe first formed. ... People
have wrestled **with** the mystery of why the universe exists for thousands ... In
quantum **physics**, **if** something is **not** forbidden, it necessarily happens ... "So **you**
**can** create virtual space-times **just** as **you can** create virtual particles.

For more information, see BBC - **Earth** - Why is there something rather than nothing?

I found an answer from www.smithsonianmag.com

How **Does** Foucault's Pendulum **Prove the Earth** Rotates? | At the ...

Feb 2, 2018 **...** Acting on a hunch, Léon Foucault had determined that he **could use** ... The
Smithsonian pendulum, like all pendulums, moved in accordance **with** Foucault's
sine **law**, ... At the equator, meanwhile, a pendulum's motion **would not** be seen ...
needed to **prove** that the **Earth** rotates, “it is useful **if we can** get kids ...

For more information, see How **Does** Foucault's Pendulum **Prove the Earth** Rotates? | At the ...

I found an answer from www.britannica.com

Carl Friedrich Gauss | Biography, Discoveries, & Facts | Britannica.com

May 3, 2019 **...** Gauss's **proof**, though **not** wholly convincing, was remarkable for its critique of
earlier attempts. ... is why no completely accurate **flat** map of the **Earth can** be
made. ... an important branch of **mathematical physics** arising in the study of ...
But by then he knew **how to use** the differential equation to produce a ...

For more information, see Carl Friedrich Gauss | Biography, Discoveries, & Facts | Britannica.com

I found an answer from physics.stackexchange.com

curvature - What is the simplest way to **prove the Earth** is round ...

This is **not** possible on a **flat** surface since **you**'d **just** be "drawing" an incomplete
square. ... Source: http://www.**math**.cornell.edu (add /~mec/tripleright.jpg to find
the image) ... **If** simple means "without **using** science or technology" then **you** are
without .... By several exams in a sysmetic order **we can** find that the **earth** is
round.

For more information, see curvature - What is the simplest way to **prove the Earth** is round ...

I found an answer from en.wikipedia.org

Spherical **Earth** - Wikipedia

The earliest reliably documented mention of the spherical **Earth** concept dates
from around the .... The shape causes a number of phenomena that a **flat Earth**
**would not**. .... and planets, they **do not** change position **with** respect to **one**
another (at least **not** ...... A circumnavigation alone **does not prove** that the **Earth**
is spherical.

For more information, see Spherical **Earth** - Wikipedia

I found an answer from plato.stanford.edu

Galileo Galilei (Stanford Encyclopedia of Philosophy)

Mar 4, 2005 **...** His work in **physics** or natural philosophy, astronomy, and the ... It was published
**with** an imprimatur from Florence (and **not** Rome) in 1632. ... method of **proof** (
Wallace 1992)? Or did he have no method and **just** fly like an eagle .... So it has
to be that **one law** of motion **will** hold for **earth**, fire and the heavens.

For more information, see Galileo Galilei (Stanford Encyclopedia of Philosophy)