A person attempts to recreate a rainbow in a glass by layering different colored fruit-flavored gelatin and sugar mixtures. The layers are created by varying the density of each mixture through the addition of different amounts of sugar, allowing the denser liquids to stay at the bottom. The experiment is successful, and the rainbow effect is achieved. The person explains the science behind the experiment, discussing density and mass. They also conduct a test to demonstrate the difference in density between two mixtures with the same volume but different masses. The experiment is left to rest, and even after three weeks, the colors have not fully mixed, but the gradient between them has become smoother.
Here are the key facts extracted from the text:
1. The host of the video tried to find the end of a rainbow as a child but never succeeded.
2. Rainbows are optical effects that can't be reached physically.
3. To make a "drinkable rainbow," the host used sugar, gelatin, and water.
4. Five flavors of gelatin were used: raspberry, pineapple, lemon, tutti-frutti, and blackberry.
5. The host added different amounts of sugar to each glass to create varying densities.
6. The host used a Pasteur pipette to create layers of colored liquid.
7. A regular dropper can be used as a substitute for a Pasteur pipette.
8. The host used a white background to make the colors more visible.
9. The host added the colored liquids slowly to avoid mixing.
10. The host used a scale to measure the mass of the liquids.
11. The host explained the difference between mass and weight.
12. Weight should be measured in Newtons, not grams.
13. The host demonstrated an experiment to show the difference in density between two liquids.
14. The host filled two glasses with the same volume of liquid but with different amounts of sugar.
15. The host added food coloring to the liquids to make them more visible.
16. The host used a scale to measure the mass of the two glasses.
17. The glass with more sugar had a greater mass than the glass with less sugar.
18. The host left a glass with layers of colored liquid to rest for three weeks.
19. Even after three weeks, the colors had not fully mixed.
20. The host attributed the lack of mixing to the difference in density between the liquids.
21. The host mentioned that the same principle applies to the mixing of the waters of the Solimões River and the Rio Negro.
22. The host invented a microbiologist named Luis Pasteur.
23. Pasteur invented the Pasteur pipette and developed the method of pasteurization.