squeevey t1_jdr1zwa wrote

Oh boy. This is a fun rabbit hole.

Tl;dr: the sound waves from the music are converted to electrical waves and sent to the headphones down the cord to the speakers in the ear buds.

The longer version -

Do you understand how a speaker works? There are magnets in speakers. The magnets are connected to the speaker cone.

When an electrical signal is sent to the speaker, the electrical signal goes to a coil in near the magnet.

Now remember, magnets have north and south poles - Positive and Negative. When the electrical signal goes through a wire it creates an invisible electrical field. This electrical field, depending on the orientation, will attract or repel the magnet.

The magnet is attached to the speaker cone. Instead of the coil of wire moving, the magnet and the speaker cone moves. This causes vibrations in the air that we hear with our ears.

So when you put a sound wave as an electrical signal into the wire it will cause the speaker to move.

Here's an example video illustrating how it works. https://youtu.be/CN6lmC6bgxE

When you have air pods or wireless ear buds, in order to generate the electrical signal to move the magnet you need some sort of power.

FUN FACT: Did you know that a speaker could also be used as a microphone? It may take a lot of yelling to move the speaker cone, but it can be done. The air waves would move the speaker which moves the magnet in the coil. That magnet moving in the coil of wire induces electrical current inside the coil and creates an electrical signal.


squeevey t1_jd0mll6 wrote

If you want to go real crazy, you can gather the cloud data for that date over the course of x amount of years and provide a probability of clear skies for a specific region.

For anyone wondering, texas is more likely to have less cloud cover. In addition, Mazatlan Mexico has even less cloud cover. For those vacation lovers.


squeevey t1_jcptbb2 wrote

Yep it is. However, in an EV you still have to reinforce the battery so it does NOT crumple. And the battery has most of the mass.

So it is a matter of design to create crumpling for passengers while reinforcing the sled. Hence decoupling the two. Would be great to just have to purchase a new cabin instead of a whole new drive train.


squeevey t1_jcpr9xw wrote

I don't disagree that it requires some engineering. I believe it is possible though. The cabin would be the safe zone. The sled would have the battery, motor, and wheels. The battery would like be in a non-crumple zone to prevent it from taking damage. Whereas the cabin would have crumple zones and could detach more easily.

Instead of thinking of the car as a complete unibody. You would compartmentalize the passenger cabin from the drive train.


squeevey t1_jcppmwn wrote

The article mentions that some party has the chance to reinvent the car, and that qualcom is really making the fully connected digital chassis.

Here's my problem with it all - I don't car about your chassis if you can't figure out how to replace batteries easily. Inevitably, EVs will take over. I want a way to change the battery in a few hours, not weeks.

By extension, this also means that hopefully you would be able to purchase a new cabin of a vehicle and swap it onto your existing platform. Sick of your interior? Keep your platform but buy a new cabin.

That's my pipe dream. A few sled types (small medium or large) that you then, can then add cabins to. Future cars will be more like horse carriages.


squeevey t1_j9yxmeb wrote

For what they pay then you'd think so. But the reality is, they are trying to hit a small sphere with a small cylinder. If they swing too early the ball goes one way, if they swing too late it goes the other way. So as a batter, you need to have your timing just right. But then you have to contend with the pitcher changing the speed at which the ball travels. That's just to make sure you're hitting to one side of the field or not.

THEN you have to control the bat where it HITS the ball above or below the axis of the ball. One makes it pop up, the other makes it go down.

Now that I'm thinking about this I'd love to see Boston Dynamics build a batting robot. Maybe a whole team!


squeevey t1_j9ymb47 wrote

The shift in MLB is when the defensive players "shift" from their normal positions to more of one side of the field. They usually do this because a batter will have a tendency to hit on one side or not. By shifting coverage to the side they hit to, the defense has more of a chance to get the ball faster.

The problem that people seem to have is that if lowers base hits. Which means there are less base runners. Which means less scoring.

So they implemented the ban. This is to hopefully have more base hits and maybe make baseball more exciting to watch.


squeevey t1_j9mi1cz wrote

> When the price of castor oil increased in the latter portion of the 1920s, Harry Gross, president of Hub Products Corporation, sought an alternative additive for his Jamaica ginger formula. He discarded ethylene glycol and diethylene glycol as being too volatile, eventually selecting a mixture containing triorthocresyl phosphate (TOCP), a plasticizer used in lacquers and paint finishing. Gross was advised by the manufacturer of the mixture, Celluloid Corporation, that it was non-toxic.[3][6]

> TOCP was originally thought to be non-toxic; however, it was later determined to be a neurotoxin that causes axonal damage to the nerve cells in the nervous system of human beings, especially those located in the spinal cord. The resulting type of paralysis is now referred to as organophosphate-induced delayed neuropathy, or OPIDN.[7]


squeevey t1_j1eq4o0 wrote

no one knows what happens inside a black hole. With that, it seems the writers chose to have Cooper basically end up OUTSIDE of time. Because the beings exist outside of time, the beings could reinsert him into time when/wherever.


squeevey t1_iyezl2i wrote

I'm not sure if you're taking the piss or what.

But my argument is that a decentralized ledger is verified by many parties openly. That's the first part.

The second part is about verification - to ACCEPT a decentralized system where we don't have to TRUST the banks are doing it right, we need to verify.

The 2008 example is about the corruption, the trust, and lack of verification that screwed over many people.

The same shit happens now on blockchains because people need to (but don't) VERIFY. So when a new "on-chain" company starts whatever "crypto" company I'm saying THEY NEED to show people how to independently verify the mechanics of their code.

If I - a stranger - gave you an executable file and said "hey, pay me money, and run this file, and it will deposit money to you" - would you do it? NO! I would hope you wouldn't.

However, if I -a stranger- said "hey, here is this cool program I made that takes in X tokens and gives Y tokens over time based on Z events, and here is how to look at that code - here and here and here. This is what this does here. If you go to here and see this, this is why it works." You may be skeptical, but you would you would also be more likely to dig in and verify it.

So my point is that ALL the experts leading up to the mortgage crisis didn't do their due diligence. The people taking on variable rate mortgages didn't do their due diligence. Basically anybody that fucked around - found out. There were even regular people who thought they were getting a "regular" mortgage to find out they too got fucked.

All because they trusted without verifying.


squeevey t1_iyejdv7 wrote

I'm picking up what you're laying down. You make some good arguments. I dig it.

> So...can you explain why the government would ever allow a decentralized currency?

Because other countries allow it. If they don't get in the game, then there's money left on the table. Rich gotta be Rich.

If you play ONLY in crypto - it's a bit shadier in the sense that the IRS can't exactly keep track of your income (it's a LOT harder). So then they trust you're reporting your income correctly so they can tax you accordingly. Same with state governments. Government wants taxes. Since this is a digital game, you gotta play to even stay in the game, otherwise money is left on the table.

USDC is exactly that: https://www.investopedia.com/usd-coin-5210435 it's a "stablecoin". The article talks about those too.

Really good article that really makes you think about the current financial system and the future.


squeevey t1_iyehwrl wrote

Is social trust not a form of currency?

For your twitter example: You register your "domain" on the ethereum name service (ENS). (you would have known that had you read the article). Then use the ENS as part of your twitter. Then in your public digital actions (and even in real life), you share your ENS domain. Done. You are linked to that. Because famous people have loud voices.

How about joe average? How would he get verified? He'd submit his ID, right? Then it has to go through the credit bureau (talk about a closed black box system). So you have private companies managing your social credit.


squeevey t1_iyedymt wrote

  1. Have you ever heard of civil forfeiture? Look it up. The government can and does take money from citizens. I understand your trying to say we do have to trust the government, but the point is decentralized systems to avoid having to trust.

  2. A blockchain is a decentralized verified ledger. That's it. Policy creation, execution, and enforcement are different.

  3. There are so many ways you cannot trust the government. If someone steals from you, and you call the police? They often say good luck, here's the police report you can file with your insurance.

  4. If you DISTRUST the smart contracts on a blockchain, then you would seek verification of them before you run the "contract". Caveat Emptor.


squeevey t1_iyea4uo wrote

I'm proposing that the creators need to put their codes out there, and elaborate them more so the joe & jane anyperson can do reasonable read through.

I'm technologically adept, yet, crypto is fuckin MURKY.

So until a group can demonstrate to the lay person how their project is validated and not just a money grab, these projects won't gain the ubiquity needed.