this post was submitted on 16 Jun 2025
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Science Memes

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[–] [email protected] 6 points 2 hours ago (1 children)

TIL: I'm just like Hertz

Nothing, I guess

[–] [email protected] 4 points 2 hours ago

Aw, cheer up; someone will apply you in thirty to forty years.

[–] [email protected] 16 points 5 hours ago (1 children)

Imagine if he had to apply for funding

"these waves have the potential to transform how we communicate and will likely find world wide usage"

He would actually be right unlike all the other funding applications which are largely oversold.

[–] [email protected] 3 points 4 hours ago

I mean it's kind of bizarre that he couldn't think of a practical application. We literally use invisible waves to communicate already, these ones move at light speed, how could that not be useful?

[–] [email protected] 16 points 7 hours ago (2 children)

Hilariously, light is an electromagnetic wave.

So, yes, we can see electromagnetic waves.... Just, only a very small segment of them.

How wrong he was. Now we use EM daily for everything.... Communicating via Wi-Fi, listening to music in the car (FM broadcast), or via Bluetooth and using LTE... Even heating our food. Not to mention medical applications like X-rays...

There's a shitload of stuff we use EM for without even thinking. It's all around us, all the time, like the matrix. I love EM science.

This goes to show you that, just because someone discovered a thing, doesn't mean that they have any idea what to do with that discovery, or that the discoveries end there....

Before, reality was just what humans could touch, smell, see, and hear, but after the publication of the charged electromagnetic spectrum, we now know that what we can touch, smell, see, and hear, is less than one-millionth.

[–] [email protected] 10 points 4 hours ago

I still like the fact that the guy that invented super glue was very annoyed by how sticky it was.

[–] [email protected] 4 points 5 hours ago (1 children)

And Mantis Shrimp still continue to baffle me in the amount of EM range they can sense/see.

[–] [email protected] 4 points 5 hours ago

I think new research says otherwise.

[–] [email protected] 6 points 7 hours ago

If only he knew his discovery would lead to the worst car rental company he problem wouldn't have published

[–] [email protected] 5 points 8 hours ago

The germans are really something else, what innovation hasn't sprung from their imagination?

[–] [email protected] 31 points 18 hours ago (2 children)

We stand on the shoulders of giants etc etc. But it seems odd to me that they wouldn't think about using this for communication at least.

[–] [email protected] 18 points 9 hours ago (2 children)

It's not always immediately obvious to what end you can use a new innovation. For instance, the Romans discovered and built a steam engine. But nobody connected the dots that it could be used to power a train.

To me, it showcases the main reason why we need to collaborate. Only together, we can exponentially increase the potential of everything we build.

[–] [email protected] 6 points 8 hours ago (2 children)

Herons steam "engine" had no power whatsoever and was not scalable. And even if it would have been scalable, they had had no fuel to drive it.

[–] [email protected] 1 points 4 hours ago

I thought they did invent a steam engine at some point. I'm sure I read that somewhere.

The thing is they were never going to invent the steam engine because they didn't have the technology to produce steel to the quality and strength that would be needed to build rails. And for that matter they didn't really have the metallurgy necessary to construct reliable boilers either.

[–] [email protected] 1 points 7 hours ago (1 children)

No fuel? All you need is something that makes a fire. And it is not like crude oil wasn't know to people back then.

If the invention had been further explored it is entirely reasonable to assume people could have invented a "practical" steam engine 2.000 years ago. All it would have needed is fixing the steam exhaust and have it drive a shoveled wheel.

[–] [email protected] 3 points 6 hours ago

Still, going from a stream powered spinning toy to locomotive is a few orders of magnitude. Heron's "engine" was a little jet engine. Heated water pushed it's way out of pipes. It's a far cry from building steam pressure in a tank, using that pressure to drive a crank shaft, and pushing along a vehicle of any kind.

There are a number of industrial era inventions required before you can even start putting something like a train together.

The Romans didn't even have replaceable parts yet. Every nail was custom made.

If you haven't seen it, watch Clickspring's series on the antikithra mechanism. It'll give you an idea of how hard it was to produce complicated machinery was at the time.

[–] [email protected] 6 points 9 hours ago

Imagine industrial revolution Roman Empire, thank fuck they didn't connect the dots.

[–] [email protected] 16 points 11 hours ago (1 children)

https://en.m.wikipedia.org/wiki/History_of_radio

By August 1895, Marconi was field testing his system but even with improvements he was only able to transmit signals up to one-half mile, a distance Oliver Lodge had predicted in 1894 as the maximum transmission distance for radio waves.

I suppose beyond the engineering know how required they were looking at possible transmission ranges and thinking it simply wasn't practical, square law and all that.

[–] [email protected] 15 points 10 hours ago

This.

There are often actual limits to what can be done, and there are practical limits. Especially in the early days of a technology it's really hard to understand which limits are actual limits, practical limits or only short-term limits.

For example, in the 1800s, people thought that going faster than 30km/h would pose permanent health risks and wouldn't be practical at all. We now know that 30km/h isn't fast at all, but we do know that 1300km/h is pretty much the hard speed limit for land travel and that 200-300km/h is the practical limit for land travel (above that it becomes so power-inefficient and so dangerous that there's hardly a point).

So when looking at the technology in an early state, it's really hard to know what kind of limit you have hit.

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