Captain Cook's Quadrant - Objectivity 47
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- Опубликовано: 17 июл 2024
- ..Or is it?! Brady and Keith look at an 18th Century astronomical quadrant that could well have been used by Captain Cook to observe the Transit of Venus.
Spectrosope: • Spectroscope - Objecti...
Venus Transit Orrery: • Venus Transit Orrery -...
Films by James Hennessy and Brady Haran
Royal Society website: bit.ly/Royal_Society
The Royal Society's own RUclips channel: / royalsociety
Facebook: / objectivityvideos
Twitter: / objectivity_vid 
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It's funny seeing all the brass parts of this antique instrument in its original wood box, all packed in 21st century wax paper, styrofoam, and plastic Ziplock bags.
thanks to Keith, the Royal Society, and of course Brady, because these videos are really excellent stuff!
It's so cool seeing not representations but the actual objects from the past. The Royal Society is such a great time capsule.
+David S. They will love that: Doing some research? Not exactly, we're more a time capsule.
Dear Brady,
I am a medical student and I wondered if there are some remarkable medical tools or other interesting objects/papers with a medical background at the Royal Society.
I would love to come to the Royal Society myself but it will be a while until I find the time to come to London. That is why I wanted to ask you to consider the topic for one of the next videos.
Good luck and please keep making these videos, they are awesome.
I fell in love with Numberphile but this series has completely won me over haha.
Basic instrument Keith? These things changed the world.
I cannot tell you how much I thoroughly enjoy these videos. Well done to Keith, the Royal Society and of course Brady. I hope to be enjoying them for a long time to come.
Even if it's not the one Captain Cook used it's still very cool. Nice object!
I love old scientific instruments like this, as well as old scientific manuscripts & treatises & the like. Objectivity is a perfect channel for me! Excellent work, Brady, Keith, & all other Royal Society staff. You are awesome! :)
How wonderful Cooks quadrant, this is a very good channel, it does not get much better than this.
I love this channel, Brady. It's so cool seeing all of these unique historical items.
Every time i see a new video on this channel i make time to watch it
That thing is just. so. BEAUTIFUL.
Brady is so lucky, I would die happy seeing all these amazing historical artifacts.
I love old scientific equipment like this one. Each piece being meticulously hand-crafted and assembled by someone who was passionate about their work. I can't imagine many things made today that will be in perfectly working order 200 years from now.
Thank you thank you thank you! These are always so fascinating!
This is awesome!
0:04 *"Boxes are great"* :)
Keith has the most calming voice ever
James Cook is my great great great great great great uncle; I am a descendant of his brother William Cook
I'm getting nearer and nearer to present days, I do hope they go on untill and after my current present. I hope there will be a bit more about electricity in the ones I haven't seen yet as the story of electricity and electronic are my big interests. There's only been a couple, at most a few episodes related to those fields so far. I really want to see instruments handled by one of my heroes, Faraday, if the Royal Society has any.
Amazing
I've never seen a quadrant before in so much detail, it's a pretty cool object :-)
objectivity, never a let down.😆
3:27 Joseph Banks, the Richard Branson of his age. On 30 November 1778 he was elected President of the Royal Society.
I wish there was a way to see how it was made. Something like that would be difficult even today.
Keith for president!!!
"So you've been here already Brady - aherherherherher", o the mirth
All I can think about is how +Clickspring could make this...
Looks like a project well worth the money, especially if done by an Australian like Clickspring.
Isn't there a guild of instrument makers in London? That's something Brady could look up.
Is the repair piece removable or is it attached to the main part ? If it's a separate part, is it engraved with the "RS 62" ?
Why did the RS send them off with quadrants, when the more accurate and easier-to-use sextants were available? Admittedly it was a relatively new technology, but not unproven.
I made a Davis quadrant which I used on my own boat have you an original their it’s brilliant because you don’t look at the sun
What did they use for packing material before expanded polystyrene? How long has expanded polystyrene been around?
+Phil Boswell EPS was first made in 1941, before that people could have used lots of things. Straw was used for stuff that could break easily and custom build wooden supports where placed inside cases to keep larger materials from sliding around.
I think Keith would look great with a mustache.
Assembled the quadrant too slowly. Missed the transit :(
3:31 He obviously got a local plumber to repair it with a bit of copper tubing he had knocking about.
+Giggstow Yes, that's right.
+Aaron Ach
I think you nailed it!
Looks expensive, and massive.... I would have thought there was a cheaper way to measure the angle to something...?
I mean, for them to go looking for it, and having to borrow it from RS in the first place, sailing it across the globe like some unique artifact... All in a nice case and everything...
Actually, I thought a quadrant was a VERY basic tool... Is this one particularly accurate or what?
honestly I've some doubts about this one. it seems too well preserved to have been used....
I don't know why I saw Captain Hook instead of Cook.
WHATS IN THE BOX?!
Has Brady actually broken anything?
+Hayley Green
A few hearts...
+Hayley Green
He doesn't put those videos on the channel.
Why was Cook so keen to measure the transit of Venus?
Seedeng Jawn
Huh. Any idea how close their measurements were to the actual value?
PINGPONGROCKSBRAH 99.2% accurate