The Great Neapolitan Earthquake (feat. Real Engineering) - Objectivity 151 

"1 in 3 cannons..... 1 in 3"

... An electron moved into a bar. In a corner booth sat a positron. They got to have a few drinks together, and then a few more. At the end of the night, they both got annihilated!

Earthquake-video HYPE!

Real Engineering you look great on camera, just work on sounding like it

Real Engineering makes me hard.

I thought it was complettely fine :)

You look kinda cute actually, stick to it and you will become better

Jasmine tht was distracting

Keith is indeed an excellent narrator.

'independently', youtube algorithm just doing its thing.

What I mean is I didnt get linked by a previous "in video" mention or a channel like or something like that. I get your point but its not what I meant. I realise the reason I was recommended one is because I liked the other.

Probably a good reason for that: en.wikipedia.org/wiki/1857_Basilicata_earthquake

The earthquake actually happened in Basilicata, but for some reason in English it's also knows as Great Neapolitan earthquake... So the error is that it's not in the area around Naples, as Naples is about 150-200 kms from where the earthquake happened.

scozio all of that region was part of the Kingdom of Naples until 1816 so perhaps the entire region was still being referred to as Naples in 1857 (before Italian unification). Not sure, just speculating.

PinkChucky15 I half agree. Knowing the full process can be beneficial in some instances but can also hinder the amount your can learn. I remember in school having to draw graphs with pencil and graph paper to teach the skills of drawing a line of best fit, choosing a good axis scale, and interpolating data. But now it’s very rare to see a graph that needs those skills since statistical software packages calculate the optimum for all of these things and it save so much time you can fit in more advanced knowledge.

He's shown himself several times on his own channel.

Mario Infante I mean, hand drawing stuff for sketches are taught everywhere for most engineering majors (I'm also an engineering student so I know what I'm talking about). But being able to sketch those and giving not so technical details like shades is very impressive

RollaArtis - The full quote is: "The gun becomes bent on precisely the same principle that the length of the gridiron pendulum is preserved invariable, or the bar of zinc and brass in parallel bands of Doctor Ure's thermostad [ _sic_ ] is inflected, namely by the difference of expansion, in these latter cases, of two metals having the same temperature but different coefficients of expansion, in that of the gun by the bar or portion of the cylinder of the same metal heated to different temperatures at opposite sides of its axis, and, therefore, differently expanded."

Nope - still doesn't make sense, except for the last part about the gun. But except for the general principle of expansion, this has surely no connection with the length of a gridiron pendulum being preserved invariable. Which is all about maintaining the length of a pendulum by means of the different effects of temperature on the length of brass and steel bars.

RollaArtis - Mallet's main point is that (for a black-powder muzzle loader, at least), the temperature of the barrel never gets high enough for it to soften and sag under its own weight, but cannon still suffer from muzzle droop. This is because the differential expansion of the top and bottom of the barrel, due to their differing temperatures, puts mechanical stress on the barrel, leading to distortion even though the heat isn't enough to reduce its intrinsic strength. He uses the gridiron pendulum and thermostat as examples of systems where mechanical stress originates from differential thermal expansion - with a cannon, we don't have two different metals at the same temperature, we have the same metal at two different temperatures, but the effect is the same.

Ah now I see - thanks for the explanation.

We may have filmed a WGOD with Brian... Stay tuned! :)

Christmas treated me well ;)