Why weren't more people saved when the Titanic sank?
I have a question related to the Titanic disaster that I have been asking myself for years: The Titanic collided with this iceberg. After the collision it took about three hours until it sank. Why didn't they use the time during this time to use the lifeboats as shuttle boats and bring the people piece…
Is there liquid water with temperatures below 0 degrees?
If so: Where? And why?
Why do the freezing points of alcohols rise?
For example, there are ethanol and hexanol. Ethanol freezes at -114°C, I believe, while hexanol freezes at -44°C. But why does less energy need to be extracted from hexanol to freeze, when hexanol is longer and thus forms stronger VdWK than ethanol? So, why hexanol needs more energy added than ethanol to become liquid is…
Cold mixture
When a cold mixture of salt and snow is mixed, water droplets form on the outside of the glass and then freeze, but I have no explanation for this. What's the answer?
How long does it take for 1.5 ml of liquid to freeze at -2 degrees?
I live about a 20-minute walk from a pharmacy and want to avoid my insulin freezing on the way there. It's -2 degrees Celsius outside. How long do you think it takes for 1.5 ml cartridges to freeze? I know I can wear insulin on my body to avoid this. But I'm just curious. Also,…
Supercooled water?
Hello, There's supercooled water. I wanted to try it myself, but so far it hasn't been successful. There's an option where you put a regular bottle of water in the freezer and leave it there for about two to two and a half hours. I did that, but ice had already formed in the bottle….
What happens to an energy drink when it is frozen?
A few days ago I put an energy drink in the freezer and forgot about it. Today I found the can. It was still intact. But the lid was significantly warped outward. When I opened it frozen, a thick, purple foam bubbled up. I collected the foam in a glass and drank it. This foam…
Is the density of frozen water always the same?
Water has its greatest density at about 4 degrees Celsius and decreases quite rapidly when it freezes. Does the density remain constant at 0 degrees Celsius and below , or does it still change? So, for example, if I leave a glass bottle in the freezer, but it doesn't burst at first, could it burst…
How strong is the freezing pressure when water expands into ice?
When water expands into ice, its volume increases by about 9% because it takes on a crystalline structure. I have seen an experiment before where water was filled into a steel ball and then placed in a nitrogen container (freezer). After the water expanded into ice in the steel ball, the steel ball burst like…
Do you store vodka and bloodroot in the icebox?
I store and drink my vodka and bloodroot at -18° Celsius. Do you do the same?
What exact difference does pressure make?
A mountaineer is cooking potatoes at an altitude of 5,000 meters. He's surprised that the potatoes are still not cooked after 40 minutes of cooking. His wife is cooking in a pressure cooker. This pot is sealed with a pressure-tight lid. This reduces the cooking time to 10 minutes instead of the usual 30 minutes….