The presence of mass and energy curves the fabric of spacetime.
This causes a lot of (measured and proven) effects, the most prominent one is gravity.
Can you honestly explain to me what curved spacetime is and how it causes this gravity force?
I don't mean offer me a section of a book, I mean can you explain it to me from your point of view of understanding it?
Sure. After you attend a lecture (or read a book) on topology and differential geometry I am happy to explain the field equations of GR and how they cause gravity. The honest answer here is "it's complicated". Honestly, calculating gravity with GR outside of the Schwartzschild solution is extremely complicated and rarely ever done. So let's just go with "Gravity is described by Newton's inverse square law" for now. That one is easy: Masses attract each other according to F=G*m1*m2/r^2, where m1 and m2 are the masses, r their distance and G the gravitational constant.
With some reasonable assumptions, gravity can be approximated by Newton's inverse square law which states that masses attract each other (similar to the electromagnetic force, just weaker and in the opposite direction).
Ok give me an example of mass attracting mass.
Let's use a small model boat and a supertanker 10 feet apart.
Do you think the small model boat is going to stick to the supertanker?
Sorry, gonna go with metric here, imperial units are for suckers
Assuming generously the small model boat is 10kg and the supertanker is
400 000 tonnes (approx. the largest ship by gross tonnage). Also, let's make it easy and say they are both point masses. Their centers of mass are probably approx. 125 meters apart. That means we get a force of ~0.02 milliNewtons. If a fly landed on the model boat, it would exert about 10 times that force. So no, the model boat is not going to stick to the supertanker.
However, there is the
Cavendish experiment, which I actually performed in high school. It is very finnicky to set up, since the tiniest air currents have more force than gravity does between two small balls, but it works.
Long story short: Gravity is measurable between objects, but the gravitational force is extremely small and can not really be noticed in everyday life (except if planets/the moon/the sun are involved).
Gravity explains how the solar system formed, why all planets (and the sun) are ball-shaped, how the sun maintains nuclear fusion, how the orbits of planets work, and how tides work.
Just regurgitation of the books if you're honest because you have no clue what any of it really means.
That is just wrong. Tell me any of the things I mentioned and I am happy to explain it to you.
Would you like me to explain how gravity causes tides?
Absolutely once you explain what gravity actually is.
I believe I did that. For our purposes, it is a force that acts between all masses.