Everything Matters | Selenium

  Рет қаралды 21,443

Exploratorium

Exploratorium

Күн бұрын

Пікірлер: 23
@baraskparas9559
@baraskparas9559 7 ай бұрын
Fantastic presentation by a champion speaker. Thank you so much. In the cells Selenium can be stored more safely as selenocystine, a dimer of selenocysteine. Together with the low concentrations in the body it means that it is not poisonous unless taken excessively, unless we use "poisonous" in the same sense as an overdose of caffeine, alcohol or nicotine.
@karlbergen6826
@karlbergen6826 3 жыл бұрын
Selenium firms a whole series on salts based on Selenic acid, H2SeO4. Selenic acid is analogous to sulphuric acid but more oxidizing. Selenates are analogous to sulfates but somewhat less soluble in water. Selenites based on selenous acid are more stable then sulphites. Selenium is a chalcogen like oxygen and sulfur and forms non stoichiometric compounds with transition metals like oxygen and sulfur. These don't obey the law of definite proportions exactly but still follow it approximately. Note for your channel: Do a playlist on your series about elements on the periodic table.
@SodiumInteresting
@SodiumInteresting Ай бұрын
Selenium could be more present in the sun that we realise. Solar spectroscopy is more sensitive to the more abundant elements, however selenium production is limited to stars more massive than ours through nuclear fusion and supernova explosion 7:28
@andrewkingjr.6356
@andrewkingjr.6356 7 ай бұрын
Very interesting!!!
@andrewkingjr.6356
@andrewkingjr.6356 7 ай бұрын
… where do I find the rest of the tales of the periodic table???
@vers1fier
@vers1fier Жыл бұрын
23:42 This is why I like to call it conventional photography over film photography!
@pankajravaliya7651
@pankajravaliya7651 10 ай бұрын
If this selenium is to melt liquid thi without heating sir to do so
@queensofthedthrone8267
@queensofthedthrone8267 2 жыл бұрын
I accidentally posted this on arsenic, but dang, THIS was the end of the series? A remarkable job nonetheless.
@SodiumInteresting
@SodiumInteresting Ай бұрын
Reduction half reaction potential 16:38
@brfisher1123
@brfisher1123 5 жыл бұрын
*HELP!!* I can't find any "Everything Matters" videos from bromine onwards!! :(
@jensonsamraj347
@jensonsamraj347 3 жыл бұрын
Hats off from India
@neeravdoshi3418
@neeravdoshi3418 2 жыл бұрын
Hy does anyone knows how to produce selenium granules ?
@aghamdahri7714
@aghamdahri7714 4 жыл бұрын
Sir .what are healrh benefits of selenium.hope you will repl
@karlbergen6826
@karlbergen6826 2 жыл бұрын
Selenium, in proper amounts prevents some cancers. An enzyme in the body requires four -Se-H groups.
@karlbergen6826
@karlbergen6826 2 жыл бұрын
innhv
@dol--lod282
@dol--lod282 5 жыл бұрын
Hello, please upload the rest of the series.. It's very nice :)
@exploratorium
@exploratorium 5 жыл бұрын
This is a ongoing series recorded live at the Exploratorium. We upload each episode the day after it is presented to our live audience. www.exploratorium.edu/visit/calendar/everything-matters
@Jay_Flippen
@Jay_Flippen 5 жыл бұрын
@@exploratorium No elements after selenium have been uploaded to both the exploratorium website and KZbin. :( Everything in Everything Matters matters.
@nickv619
@nickv619 3 жыл бұрын
Interesting
@EnergyTRE
@EnergyTRE 9 ай бұрын
😂😂 quantum dots 😂😂 emf wave length sounds much more accurate.
@georgesamaras2922
@georgesamaras2922 13 күн бұрын
xerox = ξερος = dry .. brazil nuts .. they are not nuts and they grow in boliva ... hahaha
@bussi7859
@bussi7859 Жыл бұрын
Blablablabla
@nickv619
@nickv619 3 жыл бұрын
Interesting
Everything Matters | Cobalt | Ron Hipschman
31:05
Exploratorium
Рет қаралды 4,8 М.
Everything Matters | Copper | Ron Hipschman | Exploratorium
38:43
Exploratorium
Рет қаралды 22 М.
It works #beatbox #tiktok
00:34
BeatboxJCOP
Рет қаралды 6 МЛН
[BEFORE vs AFTER] Incredibox Sprunki - Freaky Song
00:15
Horror Skunx 2
Рет қаралды 20 МЛН
Quando A Diferença De Altura É Muito Grande 😲😂
00:12
Mari Maria
Рет қаралды 38 МЛН
The 10,000 Year Clock | Alexander Rose | Talks at Google
47:18
Talks at Google
Рет қаралды 11 М.
Are there Undiscovered Elements Beyond The Periodic Table?
20:57
PBS Space Time
Рет қаралды 3,7 МЛН
Silver - THE MOST REFLECTIVE METAL!
13:54
Thoisoi2 - Chemical Experiments!
Рет қаралды 199 М.
Everything Matters | Beryllium | Ron Hipschman | Exploratorium
25:16
Chromium - Periodic Table of Videos
13:23
Periodic Videos
Рет қаралды 759 М.
Everything Matters | Sulfur | Ron Hipschman | Exploratorium
30:39
Exploratorium
Рет қаралды 32 М.
Everything Matters | Silicon | Ron Hipschman | Exploratorium
34:23
Exploratorium
Рет қаралды 2,5 М.
Danny Hillis  The Clock of the Long Now
1:11:43
Ross School
Рет қаралды 3,4 М.
The Real Reason Countries Are Going Back To The Moon
8:45
Astrum
Рет қаралды 1 МЛН
Construction of the 10000 year clock - Alexander Rose (SETI Talks)
57:36
It works #beatbox #tiktok
00:34
BeatboxJCOP
Рет қаралды 6 МЛН