Newton's Cannon

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Initial speed = 3000 m/s

I am currently using this as a test to learn how to create buttons and format the website correctly. I plan on creating a MUCH cleaner website with the actual idea for the black hole orbital pattern very soon, so please stay tuned! In the mean-time, try using the website and tell me what you think. Tell me if there is any feature you think would be nice to have on an educational website like this. Anything from design ideas, to formatting, to anything else, all ideas are welcome!