When Archimedes found the area of the surface of the sphere, he did not know any formerly solved problem having the same unknown.
But he knew various formerly solved problems having a similar unknown. There are curved surfaces whose area is easier to obtain than that for the sphere and which were well known in Archimedes' time, as the lateral surfaces of right circular cylinders, of right circular cones, and of the frustrums of such cones.
We may be certain that Archimedes considered carefully these simpler cases. In fact, in his solution, he uses as approximation to the sphere a composite solid consisting of two conesand several frustums of cones.
projects
| Project | Description |
|---|---|
| BookSlice | Turns books into text messages (📕->💬) to help you read 3x more books |
| Knoyo Health | Your pocket medical scribe: Capture, organize, and recall all your doctor's advice |
| PesanBot | Split bills by taking photos of receipts |
| img2icns.com | Convert png/jpg/svg/webp to icns for developers who need icons for their macOS app |
| SojuHWP | A Java application for reading Korean legal documents on macOS |
| VisaHacks.in | See visa requirements on a map instantly for Indian passport holders |
| Pokemon Search | An app I built while learning asynchronous programming |
| Dragon Repeller | A simple HTML game I made while doing FreeCodeCamp |
| To Do | A to-do list using localStorage |
| Decision Maker | Roll a d20 or flip a coin to help you make decisions |
| Palindrome Checker | A simple site for checking palindromes |
| Chamberlain Coffee | I tried building Emma Chamberlain's website (without inspecting element) while learning HTML and CSS. Not mobile-friendly |
Contact
- Email: walter[at]bookslice.app
- X (Twitter): @waltertayannlee
- LinkedIn: Walter Tay