The lid retains heat and pressure inside the pot, which causes the water to boil more quickly than if the surface were touching room temp air and the pressure didn't build.

Maybe not in the U.S. but believe that research done in other places is still applicable here. This is an unintelligent conversation. For example L.S.D has never been legal here nor have psychedelic mushrooms but there has been abundant research done on how it affects people. Just because something is not legal for recreational consumption does NOT mean there hasn't been research done.

The lid prevents convective cooling, which is the cooling from air movement. Without the lid, the hot air at the surface of the water rises, taking some of the heat with it, which is then replaced with cooler air from the room. So you have to keep heating the air over and over when the lid is not on.

Please read this entire message

Your comment has been removed for the following reason(s):

• ELI5 does not allow guessing.

Although we recognize many guesses are made in good faith, if you aren’t sure how to explain please don't just guess. The entire comment should not be an educated guess, but if you have an educated guess about a portion of the topic please make it explicitly clear that you do not know absolutely, and clarify which parts of the explanation you're sure of (Rule 8).

If you would like this removal reviewed, please read the detailed rules first. If you believe it was removed erroneously, explain why using this form and we will review your submission.

What I meant is that to move the sled by kicking out your legs you need to have friction. So you are essentially pushing of the ground which means that this example is not comparable to an earthquake changing the earth's orbit.

Thats what I thought anyway. Might be wrong.

you need friction to stay on a sled, yes. ???

[deleted]

[removed]

[removed]

The steam doesn't leave, so heat and pressure doesn't leave. It's like how you get warmer with a blanket on

/r/Pareidolia

>-does the temperature of the oil turn it into saturated and trans fats?

At the conditions used for normal cooking, no. Oils can be turned from unsaturated to saturated, but it requires temperatures, pressures, and reactants that aren't available for normal cooking.

>-why is the calorie count higher? Is it bc the food is immersed in such a large amount of oil?

That is exactly right! The way frying cooks food and makes it crispy, whether pan, stir, or deep frying, is to bring the oil to a high temp. 375°F roughly. This is significantly hotter than the 212°F boiling temperature of water. So whenever the water in the outer layers of a food meets this hot oil, it immediately flashes into steam. This rapid expansion of gas creates pockets that the oil can flow into. With shallow frying methods, such as pan or stir fry, there isn't enough oil to really fill up these pockets. But with deep frying on the other hand, the food is in a pool of oil, meaning all those little pockets can fill back up and absorb a ton of oil.

Dude, did you even read your own sources?

"...few clinical trials of CBD-based products have been conducted, and none thus far have examined the impact of these products on cognition."

"Results provide preliminary evidence supporting efficacy and tolerability of a full-spectrum, high-CBD product for anxiety...A definitive assessment of the impact of this novel treatment on clinical symptoms and cognition will be ascertained in the ongoing double-blind, placebo-controlled stage."

This paper was just published a few months ago as well. The rigorous study of CBD is still very young. Due to the War on Drugs, there have been very few well-designed late phase clinical trials for CBD.

Steam wasn't the energy source, it was the working fluid. The energy source was coal, or later oil. Railroad companies recognized the utility of overhead electrification pretty much as soon as the technology was available, since you didn't need to carry around an entire steam engine and coal car, though nobody wanted to be the first to electrify their system. Diesel seemed like it would be a temporary stopgap in the transition to overhead electrification, but since it didn't need expensive railside infrastructure it basically became the default by the late 50s.

[removed]

Earthquakes, and tectonic activity in general, redistribute mass in the Earth's crust. This doesn't affect the Earth's orbit but it does effect the Earth's rotation (https://youtu.be/M6PuutIm5h4). The change is small enough to be irrelevant in day-to-day life, even if it is ultimately changing the length of a day.

Those are indeed important advantages but not strict requirements for the system to function, I meant it in that regard.

The potential is there, but there are water pressure regulators installed that lowers the pressure in the tap to where it's supposed to be.

There are a lot better reasons for a water storage tank on the roof than "to not require huge pumps to meet demand when everyone is taking a shower at the same time".

Pumping into a tank means that the pump does not experience any water hammer effects (which can ruin the pump) and it means that water pressure from the tap is even (since the pressure is determined by the height difference between the water surface and the tap) rather than fluctuating as it would if it was actively pressurized by a pump.

There was little research done for many years. The trouble once anything is declared a controlled substance research become very hard due the need to secure the substance at the lab, getting it to the lab and anywhere you need to take the substance. All this is after convincing the government that you have a case that the substance will do what you think it will and that medical use will not cause the substance to be abused. If you jump through all the hoops and complete all the mountains of paperwork, you finally have to source and import the substance. This will require more paperwork and so on in the source country.

They use biodiesel (which is, functionally, not dissimilar to regular diesel).

In a large building the pressure would generally be higher in the lower floors as there’s more water ‘leaning’ on it from all the floors above it. However as there are safety regulations for the maximum pressure at any point in the system, they often use pressure valves to make sure it will not rise above a certain pressure (eg 75 psi). So that way you generally won’t notice a difference between the floors in a building. In a small building without pressure valves it’s true that the lower floors will have the highest pressure.

Steam isn't inherently clean. Your heat source largely determines how clean or not a method is. Heat engines are inherently inefficient, limited by Carnot's theorem which says the maximum efficiency depends on the temperature difference and the 'hot' side. 'Steam' locomotives were really coal locomotives. They also exhausted the steam, so they consumed both water and fuel.

Diesel engines use a liquid for fuel, so you don't need to shovel a solid coal into a firebox. The modern diesel-electric locomotive uses a diesel engine to turn a generator to make electricity to power motors. This takes advantage of the increased efficiency of a diesel internal combustion engine, and the fact that electric motors can be made more efficient and produce turning force (torque) at zero speed. (Internal combustion engines need to be rotating to produce the torque.) Electric locomotives receive electrical power, so they don't even need to carry their own fuel. If you don't need to accelerate the fuel around, that's even more efficient. Electricity can also be generated in ways that don't involve burning fuel, or with more efficient fuels. Plus for underground stuff you then don't have to worry about exhausting the combustion products or steam.

Really tangential to your original question, but combined cycle uses a gas turbine in tandem with a steam turbine for extra efficiency, so that's one way that electric trains are more efficient.

https://en.wikipedia.org/wiki/Disneyland_Railroad says they use diesel oil in the firebox to make the steam.

You might want to search for things like 'timeline of train technology'. One of the top results was https://www.railway-technology.com/features/featuretracks-in-time-200-years-of-locomotive-technology-4517022/ which looks pretty good.

From one link: CBD has a significant therapeutic effect for epilepsy (SMD − 0.5[CI − 0.62, − 0.38] high grade) and Parkinsonism (− 0.41[CI − 0.75, − 0.08] moderate grade).

The other link is about Phase II clinical trials, i.e. ongoing research.

The point stands that there is as of yet insufficient research done to say that CBD is a fit medicine for anxiety/depression. That nature link literally says: "Evidence suggests cannabidiol (CBD) has anxiolytic properties, indicating potential for novel treatment strategies."

Suggests. Potential.

Really?... you sure?