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Tag: refraction
| # | Post Title | Date | User |
| THE GREATEST HOAX IN THE HISTORY OF SCIENCE! | 5 years ago | Mitko Gorgiev | |
| Can colors develop in a vacuum? | 5 years ago | Mitko Gorgiev | |
| What is an achromatic doublet? | 5 years ago | Mitko Gorgiev | |
| Why is the sky blue? How does light make colors appear? | 6 years ago | Mitko Gorgiev | |
