SciTech Chronicles.. . . . .May 13th, 2025
#AEM #PEM #Alkaline #nickel #pozzolana #"lime clasts" #quicklime #"hot mixing" #wastewater #"genetic material" #sequencing #PCR #genomes #CCR5 #"1000 Genomes Project" #chemokines #industrial #enol #light-powered #separation
Was surprised today when I read "pinked him in the quick". I presumed it should be "pinned". This lead me to do some search and find some interesting information about the #word #quick.
#alive was the original meaning of "quick." The flesh under the nail is called quick because the nail, the hard part, is dead, but the flesh is "alive."
Some other words still in use today which carry the original meaning of quick include #quicklime, literally "living lime", #quicksand "living sand." "quicksilver", comes from the fact that mercury flows, as though it were alive.
"The quick and the dead" did not refer to gunslingers in the Old American West, but instead refers to "the living and the dead."
Rutas Enemigas #522
- Qucklime_ N.O.T.A. / old fashion runners
- Friko: Crashing through
-Quicklime: F.U.A.D. / Night embrance
- Buzzard Buzzard Buzzard: In my egg
- Quicklime: 1979 / I'm done / Summer's over
Nos visita la banda toledana Quicklime, que nos presenta en exclusiva su debut discográfico, Upper middle class heroes. Escuchamos su disco y charlamos con ellos.
Dry Ice from Seashells, the Hard (But Cheap) Way https://hackaday.com/2023/12/06/dry-ice-from-seashells-the-hard-but-cheap-way/ #calciumcabonate #chemistryhacks #carbondioxide #condensation #cryocooler #cryogenics #slakedlime #quicklime #dryice #co2
Dry Ice from Seashells, the Hard (But Cheap) Way https://hackaday.com/2023/12/06/dry-ice-from-seashells-the-hard-but-cheap-way/ #calciumcabonate #chemistryhacks #carbondioxide #condensation #cryocooler #cryogenics #slakedlime #quicklime #dryice #co2
Dry Ice from Seashells, the Hard (But Cheap) Way - [Hyperspace Pirate] wants to make his own dry ice, but he wants it to be really, r... - https://hackaday.com/2023/12/06/dry-ice-from-seashells-the-hard-but-cheap-way/ #calciumcabonate #chemistryhacks #carbondioxide #condensation #cryocooler #cryogenics #slakedlime #quicklime #dryice #co2
Okay, here's a new one: In one folk tale from Styria in Austria, a bunch of villagers try to kill a dragon by throwing quicklime into the lake it inhabits.
Ultimately it doesn't work, but they do get points for ingenuity.
#Austria #folktale #folklore #dragon #quicklime
https://archive.org/details/mythenundsagenau00krai/page/168/mode/2up?view=theater
Before electricity, theaters used quicklime (heated calcium oxide) to light their stages - hence the term 'in the limelight'.
Fascinating piece on ancient Roman concrete -- wait, no, don't leave! -- in Ars Technica.
Apparently the #Roman #AncientEngineers mixed their #concrete with #quicklime at high temperatures. This formed veins of calcium carbonate in the concrete. The veins were stress lines, so that if the concrete cracked, it did so along the veins. But the veins could sort of melt and reform, if they got wet. So after a few rains, the cracks in the concrete would heal!
#Roman #construction is famous
for enduring for centuries, from architectural marvels to common roads. TIL that some of their #aquaducts are still in use today! And they used a mysterious #concrete formula that makes our modern efforts look like dried Play-Doh. But now scientists have demonstrated the secret the Romans perfected for #selfhealing concrete: #quicklime.
#engineering #materialscience #history #ancient #lime
https://news.mit.edu/2023/roman-concrete-durability-lime-casts-0106
In #movies, #quicklime is by far the most popular stuff to dissolve the body of someone you just killed.
Spoiler alert: that stuff doesn't work very well, let alone fast.
A bunch of chemists discussed this on a forum (purely academic of course, just like #TomRiddle when he asked #Slughorn about #Horcruxes).
We came up with a few great solutions which we, for obvious reasons, can't share with you. Just don't p*ss off #chemists in any way and you're safe.
