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ELI5: Air is heavy and it takes alot of work to push it out of the way. By having someone else push the air out of the way, you can save that energy and increase your MPG.

Most cars are aerodynamic enough that slip streaming isnt something you can do anymore as the air returns back to where it was faster than you can hope to occupy that space. If you had 2 big boxy vehicles, than you could slipstream one off of the other and decrease total fuel usage at the cost of an increased accident risk as any gap will demish the benefits.

Yeah that’s the main difference.

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The energy needed to initiate fusion is far too large to just have it happen on its own. You can't do it in a bomb, so there's no such thing as a fusion bomb.

Hydrogen (aka thermonuclear) bombs get the energy needed to start the fusion reaction by setting off a fission reaction first, so they're fission-fusion bombs. It's called the Teller-Ulam design, named after the two physicists who came up with it.

https://en.wikipedia.org/wiki/History_of_the_Teller%E2%80%93Ulam_design

Your mouth chews the food to physically break it down into smaller pieces. These go to the stomach, which uses acid to chemically break down the food into tiny molecules, making a sort of acid-nutrient soup. Your intestines neutralize the acid and begin absorbing the molecules from the "soup." The nutrients go into the blood stream, where they are provided to cells all over your body. Each cell makes its own energy through respiration; it can take a molecule of glucose (simple sugar) and break it down, step by step, into carbon dioxide and water, using some oxygen gas along the way. As it does so, it captures the energy by using those reactions to "energize" certain specific molecules; the cell is able to use these "energized" molecules to "power" other functions.

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> Not even bony fishes.

Sure, but there are 8 living species of bony fish that would not be in the group, so the vast majority of all color and shape diversity in fish is in that one group.

Standard nuclear bombs work by nuclear fission Splitting apart an atom,a hydrogen bomb work by nuclear fusion (like the sun)

Through a process called cellular respiration.

All your stomach does is break food down into simple parts, simple sugar, protein, and fat molecules.

Those parts then enter your blood and are pushed around your body and absorbed out of the blood into the cells that need them.

Sugars are your cells main energy source, and they break those sugars down into CO2 and H2O through Cellular Respiration to get energy for the cell.

Your cells do the work- the process is called cellular respiration!

An H-Bomb is a kind of Atomic bomb.

Broadly there are two kinds of atomic bombs. Fission bombs, and Fusion bombs.

The first kind, Fission Bombs, were the first ones made of Uranium and Plutonium, the kind that were dropped on Japan during WW2. This work by splitting very large, heavy, radioactive atoms like Uranium and Plutonium. In a chain reaction.

The second kind are Fusion Bombs, these work the same way the Sun does, by fusing Hydrogen atoms together into Helium. Which to get to the pressures needed to do that it actually first explodes a fission bomb “around” the fusion bomb to compress that core and force fusion to happen.

H-Bombs are “Hydrogen Bombs”, so bombs that fuse hydrogen together, making them the second kind, Fusion Bombs.

What is called a “A bomb” uses fission (splitting atoms) while an “H Bomb” uses fusion (joining atoms). H bombs generate significantly more power.

I remember that episode. it was one of the episodes that led me to believe that those people were largely incompetent and made things dramatic to improve ratings.

"Atomic bomb" is an outdated term for any nuclear weapon, usually referring to the earliest nuclear bombs that worked using purely nuclear fission. A hydrogen bomb (also called a thermonuclear bomb) is a specific type of nuclear bomb that uses nuclear fission and nuclear fusion, making them much more powerful and destructive than purely fission weapons.

All fishes are one group if you include tetrapodomorpha (amphibian, reptiles including bird, mammals).

https://biologue.plos.org/wp-content/uploads/sites/7/2020/05/Fig1_FToL2-scaled.jpg

If you don't, then fishes are not one group. Not even bony fishes.

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It's really a case of birds, fish, reptiles, and various invertebrates vs mammals. Mammals are the odd ones out. The main reason is that bright colors are usually used for sexual selection or species identification. Most mammals lack full color vision and rely more heavily on scent and sound for sexual selection and species identification. So mammals lack a lot of the really bright coloration. Primates are the oddballs of the group that rely more on sight and less on smell.

Mammals do come in some pretty varied shapes though, not many equivalent groups contain species as diverse in body shape as bumblebee bats and blue whales. But in terms of decorative frilly bits, again, those are often about sight based signalling.

>It's also worth noting that fish in particular may be so widely varied because they're miscategorized; there's a push among some biologists to split up "fish" into several differently groups because there's so much more variation among "fish" than among equivalent groups.

While this is true, the splits would be jawless fish, sharks and rays, lungfish and kin, and everything else. So a huge chunk of the diversity of fish, and especially the colorful fish, is actually in one group of fish.

I don't think they made any claims about it being safe. To me they seemed to imply the opposite, but just that their father did it anyway.

Slip steam only works well at extremely fast speeds. The distance required to slip stream is too small to be safe for highway driving. You might get some effect behind a transport truck, but not much.

How it works. As the 1st vehicle moves, it is pushing air away from the vehicle. This creates a small pocket of slightly less dense air behind the vehicle. If a 2nd vehicle can follow behind, in that pocket of less dense air, then it has less wind resistance slowing it down, giving it the slip stream advantage.

Das a lot of words. Ty for your words.

Its because they need water to pass through their gills, for the oxygen extraction process to work, pure air will not work.

Yep. I don’t know why I didn’t think of that. In my area the vast majority of traffic lights also seem to be surrounded by street lights so the entire stop light is illuminated at night. I was hypocaffeinated this morning, that’s my excuse. Thanks for replying, it makes sense!

It depends what you mean by “work as described”. If you mean that taking a B12 supplement will increase your B12 levels and accommodate for a deficiency, then yes, vitamins do work as intended.

If you mean the claims you often see such as “vitamin C cures colds” or “B12 increases energy and focus” then you’re correct in saying that they do not work that way.

Vitamins have been shown to increase factors like energy or overall health (more than placebo) if and only if the person has a prior deficiency.

Non-vitamin supplements are somewhat different as some of them are pharmacologically active and can do things like constrict or dilate your veins. There isn’t a hard line between supplements and drugs, meaning some supplements can have a psychoactive effect as well.