Colourblindknight
Colourblindknight t1_j5tubhf wrote
stares at the grave of Altered Carbon
Colourblindknight t1_ix02zdc wrote
Reply to Origami titan beetle, designed by Shuki Kato and folded by me, folded from one uncut 50cm square of paper, 2022. by H3ISEN
I have to know, if you didn’t cut the paper, how did you manage to get the legs and antennae so separate? Amazing work, OP!
Colourblindknight t1_it8h08r wrote
Reply to comment by regular_modern_girl in Why does alcohol kill bacteria, but not the cells that our bodies are composed of? by Chairman_Mittens
That’s because ethanol likes to form an azeotrope with water! When you’re distilling ethanol, there’s a point at about the 95% mark where the combination of hydrogen bonding between the OH groups in the water and ethanol as well as the vapour pressure of the solution make it so that the boiling ethanol will pull the water with it, making it basically impossible to distill 100% ethanol using regular non-chemical means. Because of the OH group wanting to interact with water, ethanol is super hygroscopic, meaning you are correct that if concentrated enough it will pull moisture from the air.
Pure ethanol absolutely exists though, and it’s a really useful solvent in a lot of labs. However, because of the reasons stated above, it’s generally kept in a sealed glass bottle over what’s known as molecular sieves. They’re these little beads of metal-silicates that basically form a microscopic mesh that can trap and “sieve” the water from the ethanol since the ethanol molecule is too big to get through.
Colourblindknight t1_it7ypuq wrote
Reply to comment by regular_modern_girl in Why does alcohol kill bacteria, but not the cells that our bodies are composed of? by Chairman_Mittens
This. Ethanol is very hygroscopic, meaning it’s really good at pulling moisture from its surroundings at higher concentrations. It will pull this water from whatever source it can find, including living tissue; that’s why it’s deadly to bacteria, it literally sucks them dry. I had a TA in university who told me a story of a guy who was banned from every lab on campus since he decided to take a slug of pure ethanol from the jug and had to be sent to the hospital for chemical burns in his mouth and throat. The main reason we can drink it is because it’s so diluted in most cases, and like you said we are made up of far more material than bacteria.
Colourblindknight t1_j5vbaa4 wrote
Reply to comment by tuan_kaki in Ted Sarandos says that Netflix has “never canceled a successful show” by avery5712
I think it was already an expensive show, but iirc season 3 was in production right as the pandemic hit and it was just never picked up again. :,^)