Gravity well


Pupils are recommended to be 9 years old or more.

This page is for parents to explore with their child/ren the aim of helping them to understand some aspects of gravity.

Now go to Simply Gravity 

 Take at least two sessions for this page.

It includes 'spacetime' and it's only necessary to know that it exists.

Detailed understanding is not essential.

Simply Gravity is a good start.

1 Some basic ideas:



1.1  A real well dug in the earth.





1.2  Gravity can be curved as you see by this artist impression.



1.3   Home-made from stretchy material over a metal hoop with legs. 

Yes. it's an egg timer! 

1.4
There are four dimensions in space.  Length, Width, Height (or depth), and 'spacetime'.

1.5
The wool in a cardigan or jersey is woven into a flat result - a fabric.  The thickness is depth.

1.6
Using a lot of imagination, the three dimensions L,W and H are woven together, along with time, into a single fabric: spacetime.

1.7
This fabric is continuous, smooth, and gets curved and deformed by the presence of matter and energy.


 2  Moving on

  1. Very good resources are not so easy to find as you think.

  2. Gravity involves a great deal of ideas.  

  3. This page is for parents to explore with their child/ren the aim of helping them to understand some aspects of gravity.

  4. Gravity Well here
           2.8         


2.9  

Why are the pictures 2.8 and 2.9 here together?

Who is he?
 

2.95  People also ask

What is the meaning of fabric of time?

Generally speaking, it's kind of a slightly poetic or flowery way of talking about the way that energy, gravity, and time interact — much like an elastic fabric. It's described this way to help people understand the relationship between those things; it doesn't mean that time is a fabric.
 
2.10.1

In the context of a "gravity well," a "grid" typically refers to a .... visual representation of the gravity field around a massive object in space, 

2.10.2  

often displayed as a network of lines that depict the strength and direction of the gravity pull at different points, essentially mapping out the "depth" of the gravity well across an area. 

source edited
 

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