10: Thorium and Osmium (12 Days of Christmas)

published on July 20, 2020

On the tenth day of Christmas we have to really quite unusual elements which you might not have seen before we have opium which is one of the few metals that's blue and this is a very beautiful crystalline example if you look it's sparkles as you move your head

Osmium is one of the densest metals it has arguably the highest melting point there's some argument whether it's iridium or osmium they're very close together and they're both very high the other element is the hardest one to get

Hold of of any element up to uranium and this is thorium which is element number 19 so this was a present from Max Whitby and Thea Grey who are specialists in preparing samples of the elements thorium is particularly hard to

Transport you can't send it through the post because it's radioactive so they gave it to me and I brought it back to Nottingham in my pocket I was slightly worried that there might be anti-terrorist radiation meters but I

Think the plastic is sufficiently thick that you can't get any radiation out from it we'll be making a video quite soon about thorium but it's quite interesting the sample here are more wires than the lump

And it's a slight blackish color which quite surprised me the osmium was a present from a fan I was at a conference and he jumped up from the audience as I was walking through and said I have a present for you and whipped out some

Osmium from his pocket I was amazed for day ten we have two really exciting elements osmium thorium day nine periodic table handkerchief a child piece of wood seven a fan from a fan six element carbon five a glowing

Plectrum for drinking vessels three chemical badges two periodic table bed covers and one piece of tartaric acid from a Swiss wine barrel let's see what we get for day 11 Plus this one pair of stars in tight

Orbit around one another the Sun then encountered this binary star one of the things we know about those follicle three-body encounter so binary star as a first community is that the first off can get kicked out of high speed and in

Fact the typical speed you'd expect the Sun to get kicked out out in that case is around 20 kilometers per second you

Related Videos

all right so the other day I said with my kids watch TV you probably familiar with these reality shows where they put a bunch of clueless people put them in an...
well a mathematician and I like action movies particularly die hard is one of my favorite you know action movie and as a one which has a couple of Matt's p...
so today we've got a very very special guest who is going to perform an incredible feat for you to introduce the special guests abroad my multiplying monke...
one of the first videos we did for for this channel was about the Futurama theorem which is a pretty amazing thing it's about mind switching mathematics an...
well last weekend i actually did a talk on mats in the simpsons here in melbourne and i'm going to split this up into three different videos so today you g...
so recently a few people left comments to the effect that mythology is Illuminati confirmed and they based these you know comments on a couple of things they s...
I'm assuming that you you just watched the Illuminati confirmed video and that you're a hardcore mathematician and that you now want to prove that your...
well i love simpsons giuseppe loves the simpsons everybody loves the simpsons and if you look at the views yeah it's really everybody who loves the simpson...
today I've got something lined up which is going to be really really useful for people who have trouble memorizing that times table well we've come ver...
I'm assuming everybody here also watches numberphile Giuseppe by watching number files numberphile is great so does in case you don't watch numberphile...
okay so to start off I've got four four images for you so look at them one two three four now quick question what do all of them have in common well I woul...
as you can see I'm quite serious about juggling have been serious about juggling for decades used to busk and do all sorts of things now what I want to sho...
so recently we did a video on the most mysterious and beautiful identity in mathematics e to the PI I is equal to minus one comes up three times in the Simpson...
oh you're probably all familiar with this puzzle here so we've got a picture distributed on 15 tiles and we've got an empty square and this is empt...
today M stands for Mandelbrot set before scene at night let's zoom in what you find is all these amazing pictures here like these little baby Mandelbrot&#3...

PI MUST DIE !!!

7 months ago
I don't know about you but I sometimes get really really sick of pie so last week I enlisted the help of some friends at the tech wonder club we're tra...
a lot of you will be familiar with this strange identity here one plus two plus three plus dot dot equal to minus 112 now when you think about it this looks to...
you hello everybody I'd like to talk about a little problem that has intrigued people ever since we discovered mirrors let's have a look at what I see ...
exciting news everybody just a couple of days ago I solved the 40 Rubik's cube for the first time not many people have done this so I thought I'd do a ...
today I want to let you in on a really neat trick that I learned from a very famous mathematician how to subtract infinity from infinity to get exactly pi so f...