"Some decorative bling." Man, it's so weird to see some of the more ridiculous slang from my teen years wind up being spoken in such a dignified context.
After watching a few videos recently on the difficulty of making glass from scratch (How to Make everything / Cody's Lab, Carsandwater) I see the old glasses and wonder about the history and development of optical quality glass. Would love to see some of this on Objectivity and/or Periodic Videos!
It made me wonder how accurately you could determine the state of someone's eyesight based on rather old glasses. Obviously they didn't grind lenses to specific prescriptions as we do today, but I wonder how closely you could get a pair to match your eyesight, then and through history, and at what expense.
Siddharth Bala, That would be tortoiseshell, which is exactly what is sounds like. It was a common material for glasses frames, combs, inlays, etc. The style is still replicated in plastic for frames especially, and "tortoiseshell" now refers to the pattern as much as the actual material.
And that leads into The Worshipful Company of Horners, a London trade guild dating from 1284 who took on plastics in 1943. London trade guilds make another field that Brady might look at, though I suppose his plate is full.
+Michael Steeves I think there was a video that happened to mention the island of glassmakers in Venice. +Serval Spots By the end of the 18th Century, telescope making was getting into the "I'll do you one better" phase and the top instruments were refractors with the achromatic lens having been invented in the 1750s and the apochromat the following decade by the achromat -inventor- patent-holder's son. Achromatic lenses use two different types of glasses with different properties sandwiched together to eliminate chromatic and spherical aberration. Daniel Fahrenheit's instruments of 1720 were excellent for any age and just waiting for the right working fluids to be discovered. The art and science of glassmaking and blowing was well on by the end of Priestley's life.
A video with the Royal Society building historian would be interesting. I'd be interested to hear about the various residences that the Society has occupied over it long existence. In addition, I'd like to know what the society did to protect all of its priceless documents and artifacts during the Blitz (1940-1941). Did everything get shipped to an unassuming cottage on the outside of London?
Newton published his Laws of Motion only a few years later in 1687. So interesting to see that many great minds converge towards an idea when its time arrives
Either horn or more likely looking at it turtle shell, it can become malleable with heat and had some of the properties of a modern plastic and was often used like we use plastic in the 18th and 19th centuries though only for high quality products it was an expensive material.
Scheele wrote to Antoine-Laurent de Lavoisier about his discovery but the letter never reached it's destination. In the meantime Priestley independently discovered oxygen by heading mercury oxide with a lens that had once belonged to Cosimo Medici (!) He then personally went to see Lavoisier in France. It wasn't the only time Scheele missed out and I think it was Isaac Asimov who called Scheele "Hard Luck Scheele". Lotsa name dropping there. It is just another example of independent inventions and discoveries which turn up more or less simultaneously because the background technology and knowledge exists.
Carl Wilhelm Scheele of Sweden discovered oxygen in 1773, one year before Priestley. Priestley is unfairly usually the one credited since he published his findings quicker.
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"Some decorative bling."
Man, it's so weird to see some of the more ridiculous slang from my teen years wind up being spoken in such a dignified context.
That's the HI sneakers. Coming soon with a sparkling buckle.
The official shoe buckle of the Hello Internet podcast.
Was gonna comment to mention this, but it appears I have been beaten to the punch by 11 hours. Have some thumbs up.
Project Twinkle Toes as it were
After watching a few videos recently on the difficulty of making glass from scratch (How to Make everything / Cody's Lab, Carsandwater) I see the old glasses and wonder about the history and development of optical quality glass. Would love to see some of this on Objectivity and/or Periodic Videos!
It made me wonder how accurately you could determine the state of someone's eyesight based on rather old glasses. Obviously they didn't grind lenses to specific prescriptions as we do today, but I wonder how closely you could get a pair to match your eyesight, then and through history, and at what expense.
Very interesting suggestion!
Siddharth Bala, That would be tortoiseshell, which is exactly what is sounds like. It was a common material for glasses frames, combs, inlays, etc. The style is still replicated in plastic for frames especially, and "tortoiseshell" now refers to the pattern as much as the actual material.
And that leads into The Worshipful Company of Horners, a London trade guild dating from 1284 who took on plastics in 1943. London trade guilds make another field that Brady might look at, though I suppose his plate is full.
+Michael Steeves I think there was a video that happened to mention the island of glassmakers in Venice.
+Serval Spots By the end of the 18th Century, telescope making was getting into the "I'll do you one better" phase and the top instruments were refractors with the achromatic lens having been invented in the 1750s and the apochromat the following decade by the achromat -inventor- patent-holder's son. Achromatic lenses use two different types of glasses with different properties sandwiched together to eliminate chromatic and spherical aberration. Daniel Fahrenheit's instruments of 1720 were excellent for any age and just waiting for the right working fluids to be discovered.
The art and science of glassmaking and blowing was well on by the end of Priestley's life.
Wow, the Order of Merit is beautiful.
Dude.
DUUUDE.
YOU LOOKED THROUGH PRIESTLEY'S SPECTACLES. Amazing.
A video with the Royal Society building historian would be interesting. I'd be interested to hear about the various residences that the Society has occupied over it long existence. In addition, I'd like to know what the society did to protect all of its priceless documents and artifacts during the Blitz (1940-1941). Did everything get shipped to an unassuming cottage on the outside of London?
Did the Society continue to meet during WWII?
Keith Moore is, and will always be, my hero.
The usual portrait I see of Joseph Priestley here in the UUA Joseph Priestley District shows him wearing such spectacles.
+dcseain I'd love to see this. Do you have a pic?
Wait, are those the Hello Internet branded shoes?
1:50 And to think, he was THIS close to finding out, EVERY ACTION HAS AN EQUAL AND OPPOSITE REACTION.
It's great science when in hindsight, it's hard to imagine how it could ever not have been understood.
Newton published his Laws of Motion only a few years later in 1687. So interesting to see that many great minds converge towards an idea when its time arrives
I love this channel... and Keith!
And Brady of course :3
Would be nice to see how these episodes are made. How do you choose the objects, what research do you do and so on.
An episode from behind the scenes, if you will.
Charles II is my favourite monarch. He's the party King who brought back fun after Cromwell died
The official HI sneakers with a posh as cushions buckle!
It looks like someone set a cup of coffee on the order or merit box, you can see a ring on the cover.
I could have sworn they are Harold Lloyd's spectacles.
What is the spectacle frame made out of? Surly not plastic...right? Bone or something?
Probably tortoiseshell.
Either horn or more likely looking at it turtle shell, it can become malleable with heat and had some of the properties of a modern plastic and was often used like we use plastic in the 18th and 19th centuries though only for high quality products it was an expensive material.
This episode of Objectivity is brought to you be Hello Internet Brand Sneakers. The official sneaker brand of the Mighty Black Stump.
Brady!! Take your words back, you got an OBE in Feb!!!
5:09 Brady Haran
5:11 a young Sigmund Freud
I wish I hadn't missed out on the HI sneakers... Those do look awesome.
Keith is awesome!! So knowledgeable.
Nice glasses, they look very modern
That's a proper introduction Brady.
I think an Order of Merit for TH-cam excellence would be quite apropos!
Do you have any equipment that was used to study eclipses?
Episode 27 talks about spectroscopes and eclipses if you haven'ts seen it.
Among all the wearables shown, what I want to wear is Keith's rocking hairdo!
Best channel on youtube ever.
We'll take that! Thanks for tuning in.
I'm sure it's been asked many times before, but how does one Keith Moore?
Oh GUNS. I thought it was about Gum Disease. The recoiling of gums.
How disappointing - I was hoping the box contained the first balance spring watch given to Brouncker by Huygens.
Wait... If Brady's in front of the camera then who...?
i cringed a bit when i saw the order of merit award actually says "FOR MERIT" on it ...
Better than being awarded an honour for being 'born well'
Who's the man on the portrait at the back?
Id like to know what those spectacles were made of.
some sort of horn, or animal shell most likely
Whoa, those are some strong glasses! How poor was that man's eyesight!?
Why do you ever leave us Keith!
My what a spectacle. And, the video was interesting, too!
3:29 4:17 Somebody else who likes pointing at stuff, like Brady!
Nilguiri 😂🤣🤣😂
7:18 Pawn Stars: I can give you 35 for it.
That's a weird pronunciation of Scheele, the discoverer of Oxygen.
Damn right!
Dalitas D Actually oxygen was discovered by Ican breethe
Scheele wrote to Antoine-Laurent de Lavoisier about his discovery but the letter never reached it's destination. In the meantime Priestley independently discovered oxygen by heading mercury oxide with a lens that had once belonged to Cosimo Medici (!) He then personally went to see Lavoisier in France. It wasn't the only time Scheele missed out and I think it was Isaac Asimov who called Scheele "Hard Luck Scheele". Lotsa name dropping there. It is just another example of independent inventions and discoveries which turn up more or less simultaneously because the background technology and knowledge exists.
Who published first? Who waited half a decade before reporting his results?
One day the Royal Society will have my fidget spinner
very awesome indeed!
Carl Wilhelm Scheele of Sweden discovered oxygen in 1773, one year before Priestley. Priestley is unfairly usually the one credited since he published his findings quicker.
Not sure how unfair that is. Publishing is how scientific discoveries are shared, so it determines precedence
I love the hello internet shoes
Anyone else hoping for Tycho Brahe's nose?
That would have to be in the Czech Republic where he died.
jmchez I guessed it probably would be, but one can hope. :p
All hail the Nail and Gear. Ok, I know, you can't even see it. Whatever ... \o/ Nail and Gear \o/
Yay Keith!!
Dorothy Hodgkin was a "seminal" figure? Uhm....
Quit stalling .... "What's in the Box?" :-)
Nice looking frames.
What did they breathe before he invented Oxygen?
Are that the hi sneakers ?
Casper p yup
imagine discovering oxygen
Shit I thought guns were invented in the 20th century!
Brady looks quite distinguished with glasses. A bit sexier but not quite so hard as nails, kind of like a thirty-something Kenneth Branagh.
keeeeeeeith
Don't want to brag, but I am first. thanks
Petr Flosman You finally achieved something in your life!!!!
Lego Ang Yeah, I achieved master level of procrastination!
What are you procrastinating?
ngrmn my life
The real challenge is to be last comment.