Why Does the Pink Color in a Titration Fade Over Time? - Physics Forums The absorption happens fairly slowly and a faint pink endpoint will gradually fade Adding more NaOH after the faint endpoint is reached (producing a darker endpoint) will cause the pink solution to persist much longer but also results in an inaccurate titration and should be avoided
Aurora Forecast - Geophysical Institute The aurora is most often seen as a striking green, but it also occasionally shows off other colors, ranging from red to pink or blue to purple Oxygen at about 60 miles up gives off the familiar green-yellow color, while oxygen at higher altitudes (about 200 miles above Earth’s surface) gives all-red auroras
Why does a Walrus Blush? - Geophysical Institute Various investigators have suggested that the circulation in the skin and hind flippers of pinnipeds plays an important role in maintaining the animal's thermal equilibrium The skin of walruses becomes pallid when it is exposed to cold air or water and changes to pink when exposed to warmer ambient temperatures
Plasma Color: What Makes It Blue What Colors It Can Be? - Physics Forums Depends on the lamp Incandescents - while don't contain plasma - emit the light just because wire is hot In gas discharge lamps atoms (or molecules) get excited by collisions with electrons or other ions atoms that were accelerated by the electric field between electrodes, then they emit photons when falling back to lower energy states
Why does my Patton-Reeder indicator immediately turn blue? (Ca2 conc. ) So I made a new solution, adjusted to pH 12, and this time it turned pink I added the EDTA, then it turned blue No idea what went wrong the first time, maybe too much indicator so the pink looked purple blue Anyway, now back on track! Thanks Borek, otherwise I would have ended up with some concoction of magnesium, potassium, sodium etc etc
Can Himalayan Salt Dissolve in Candle Wax? - Physics Forums It's more a matter of aesthetics I think it's a very good idea, I have a couple pink Himalayan salt candle holders myself that give off a nice glow to a room The problem here is that the tealight candle has to be replaced every time I light one and tealights don't usually come scented!
Ice Worms - Geophysical Institute Ice worms eat airborne pollen grains, fern spores and the red algae that lives in snow and sometimes colors it pink Unable to exist at temperatures much below freezing, ice worms must remain in temperate glaciers
Blue Moons and Lavender Suns | Geophysical Institute Shades varying from pink and orange to yellow and brown were used to describe the sky The sun disc when visible appeared blue or purple As it appeared and disappeared through breaks in the clouds it seemed to be in motion -- hence the basis for the impression of flying saucers "
Understanding the Physics behind the Epic Racing Scene . . . - Physics Forums Just elaborating on Integral's comments: 1 If the initial angle is the same, and the ground height is the same for both cars (i e, they are landing on a strictly horizontal road), this stunt is impossible by the laws of free-fall physics (i e, the first car must land first)
Whats Really in Colored Printing Inks? - Geophysical Institute Newspapers often serve a second life after their initial purpose of spreading the news is over: rolled into fireplace logs, spread as mulch on the garden, or as an absorbent mat under a litter of