- Local time
- Today, 08:46
- Joined
- Jul 9, 2003
- Messages
- 16,245
A scientist who was so so incensed when asked to clean up his mess in the kitchen, decided to eliminate coffee stains.
After years of experimentation and spending millions of dollars he finally came up with a solution:-
After years of experimentation and spending millions of dollars he finally came up with a solution:-
How to get rid of the coffee-stain effect
The coffee-stain effect is a well-known effect in physics and daily life in which a dark-colored edge remains when a fluid containing particles evaporates. This is caused by an "avalanche" of particles moving to the outer edge, University of Twente scientists showed in a past study. In inkjet...
phys.org