So answer the question I was obviously asking.

Again no, strictly speaking he is not. Layman’s terms are just as valid. They do not stop having meaning just because someone uses a term in a technical fashion in a different manner. The usage of the term battery to refer to a singular item is not remotely an oxymoron. It’s a well defined, well understood, broadly used term that is fully consistent in how it’s used.

The mental model you present in your question is absolute, that salt hydrates or dehydrates. The truth is somewhere in between those extremes.

In this case, your body has a certain salt concentration it likes to maintain, so when you hydrate, it will try and maintain that concentration. If it can't it will either reject some of that water (if there's not enough salt) or require more water (if there's too much salt). A fluid that hydrates optimally contains the exact salt concentration your body prefers.

A simple way to look at it is what most people should be doing with their bank statements. So you would keep track of what you bought vs money coming into the account. Look at the beginning statement and how much money is in the account, add up all the money that came into the account for a certain period and then subtract money that went out for bills and such. You should have a number that matches the number at the beginning of the next statement. In business, this would have to do with the financials of a company except more involved. You should balance your books to make sure there wasn’t an error and companies balance their books for the same reasons but also to get a state of the business presently and for tax reasons.

Yeah and with addiction vs hobby, it comes down to where you are getting that dopamine “hit” from and how much. If you have lots of places (hobbies, social interactions, pets, etc) you only need a little “hit”.

If the only thing left in your life that gives you that dopamine “hit” is say, gambling, and you need to do a lot to get the same “hit” as you used to, that’s an addiction.

I’m not familiar with this particular treatment but drugs are only so effective. Once you hit a particular concentration you are no longer getting meds to the appropriate receptors since they are saturated. Additional medication will just cause side effects since increased concentrations of drugs will just start causing side effects by interacting on other receptors. Using a different medication allows you to get the same action but without the increased drug concentrations.

Exactly, and alkaline cells far preceded Li-ion cells. You could easily make a TV remote today that takes a single 18650 Li-ion cell, but not in 1980.

Since AAA cells have been ubiquitous for decades, and that's what consumers have come to expect, it's going to take a long time to transition everything to something else.

Potentates

Not a lot of ELI5 answers, but some good history.

The Fibonacci sequence is a set of numbers with a distinct pattern (explained in other comments). What is important is that the ratio of one number to the one following it is always the same. (The second is always 1.618 times larger than the previous). That is called the golden ratio, and it is the golden ratio that is seen everywhere in nature.

If you’ve seen the image of rectangles that form into a spiral, this is what it means:

The small rectangle has sides with that exact ratio. The long side of that rectangle is the short side of the next, and that rectangle uses the golden ratio. The long side of that one is the short side of the next…. And so on. This creates a spiral pattern, and that pattern, in that ratio, happens all the time. Flowers, tree leaves, and animal shells for example. Always 1.618 times bigger than the previous part.

The number isn’t magical. 1.618 isn’t special. There is just a natural order to things, and we created a numerical system that happens to measure that order at that number.

Like amphetamine and vyvance.

> How much does the rotation of the earth vary, and is it significant enough to warrant this detour in an explanation to a 5-year-old?

ELI5 is not for actual 5 year olds. It's for an intelligent layperson.

Day length fluctuations explains all in a depth that is beyond me.

When I went with my son to Greenwich observatory on the River Thames, London.

We looked at our GPS co-ordinates we found that the zero meridian was 100m or so further east than the observatory. This was explained as being caused by the earth slowing more than anticipate and so the 0° meridian moves further east.

Every so often there is a leap second when this occurs the GPS data resets the zero meridian back to the observatory

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What's interesting is that the same brain region is responsible for both physical aggression and mating behaviour.

https://youtu.be/kTqt_3YJBbs

Benzos work to make GABA receptors more functional. These are the locks. Glutamate is the key that activates it. Taking benzos make the lock more unlockable. Drinking alcohol affects glutamate activitity. As a CNS depressant it inhibits these GABA receptors therefore your body compensated by creating more GABA receptors. This is why someone who’s drank too much for too long has severe withdrawals. The increase in GABA receptors is fine when they’re all inhibited, but when you stop drinking then the glutamate levels shoot up and it causes people to have seizures when they stop drinking. So they literally need to keep drinking to stay alive.

That’s also a distinction i like to make in the dependence/addiction vernacular but thats a side point you’re not asking about :)

one little addition because i think the chemistry is cool- 1P-LSD is also a prodrug of LSD, meaning it turns into actual LSD inside your body, which is neat. It's like psilocybin in mushrooms- psilocybin by itself is not psychoactive, but in the acidic conditions of the stomach it turns into psilocin- the thing that actually makes you trip.

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Thanks for the correction

Your representative ('s staff) will take note of your opinion, but more-or-less in proportion to the effort you make.

• Click on an on-line petition: eh.
• Call and give a brief statement: okay (there's probably a dozen other constituents of the same opinion).
• Write a letter, and print it, and mail it: wow, this guy cares (there's probably hundreds of others).

Dude, you're going to lose this battle. Stop.

Can you pick me up some opiates?

Is that why in status seizures - once we hit the midazolam ceiling there's no point giving more and use another drug?

So politicians can brag about how great things are when they are not and so companies can say inflation is low when it is not so they don't have to give big raises. This is an honest and accurate response. I think we all know and realize those three items should be included because they make up the majority of most people monthly budget.

It mimics the way cells divide, the ratio between any successive numbers gets closer and closer to Phi the higher you get, the western musical scale is based on the sequence with one octave having 13 notes and a scale having 8 notes, tons of classical musicians used that ratio as a template in the process of making music, tons of architects over many cultures have used that ratio in their buildings, Our DNA strands measure 34 angstroms long by 21 angstroms wide for each full cycle of its double helix spiral, the ratio between our moons radius and the Earth's radius is phi... And so on.

You know... reasons for hype.. like they asked

primary key: the thing that is guaranteed to identify a row in a table. it might be a single column that's an incremental number (an identity column), or it might be something like a guid, or it might be two columns that together make a unique value, but might not be unique in themselves.

foreign key: when one table links a column or columns to the primary key in a different table. this is good for referential integrity, you can't put a value into the foreign key columns unless they actually refer to a row in the other table. and that row is prevented from being deleted if something references it. (or you do a cascading delete, that deletes all records pointing to the initial record you're deleting).

clustered index: the columns in the table that define the order that data is stored in. normally it's the primary key. sometimes it can be useful to have that as a timestamp, so records from similar times are all kept together in storage.

natural key: sometimes the data you're given has a key that uniquely identifies the record already available in it. a (bad) example might be your social security number. that uniquely identifies you from everyone else in the usa. isn't good for foreigners tho. the chassis number on a car might be another natural key.

surrogate key: if there's no natural primary key in your data, you'll need to give it one. if you just number the first inserted record as 1, the next as 2, etc, that key is not part of the natural data you're storing, it's surrogating for a natural key that isn't present.

Looks like a pile of T-Shirts. Also thanks for the explanation