Diamonds, Pearls and Atomic Bomb Stones - Periodic Table of Videos

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Periodic Videos

Periodic Videos

9 жыл бұрын

The Professor investigates the mineral collection of the great Indian scientist CV Raman.
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Пікірлер: 843
@periodicvideos
@periodicvideos 4 жыл бұрын
These videos are made by Brady Haran - check out his "Unmade Podcast" here: bit.ly/UnmadePlaylist
@Ruthless9o7
@Ruthless9o7 3 жыл бұрын
This is so cool!
@otterpop5551
@otterpop5551 3 жыл бұрын
Dont tell anyone but you can easily break those diamond "windows'🤫🤫🤫🤫
@unnamednewbie13
@unnamednewbie13 8 жыл бұрын
Video teases my inner rock-collecting child.
@positronundervolt4799
@positronundervolt4799 5 жыл бұрын
Why did you stop?
@baguiobyben12
@baguiobyben12 5 жыл бұрын
The best rock I collected was an inch in diameter sized obsidian. It was found on the beach where we use to swim at when we were younger. It's the best because there were no volcanoes nearby, so I think it was washed up ashore from somewhere really far, or there could be a fault line below the ocean floor. As a kid I was amazed that all of us are made from the same elements from the earth. I was always fascinated by how everything on earth seems in someway tailored so that life can thrive on it. I think humans beings in general are made to be curious, always asking questions why and how. Maybe the reason why we, when we were just little kids, ask a lot of questions. We're just made that way and I really think that this is one of the characteristics that separates as from other animals. The endless thirst for answers to things we don't understand.
@positronundervolt4799
@positronundervolt4799 5 жыл бұрын
@@baguiobyben12 Nicest KZbin comment I've read all year.
@bortflong5734
@bortflong5734 4 жыл бұрын
Who doesn't?
@sigurdbrattland7828
@sigurdbrattland7828 4 жыл бұрын
ITS A MINERAL!
@WolfricLupus
@WolfricLupus 3 жыл бұрын
I had to pause the vid and say, my first thought is that I absolutely love the clock-powered, sun-reflecting device!! That's so cool!
@benjaminjernfors
@benjaminjernfors 4 жыл бұрын
6:10 Asbestos is the common name for six naturally occuring fibrous silicate minerals. I work in demolition business in Finland and asbestos is something I'm very concerned about when demolishing old buildings (I wear professional respirator mask tho). In Finland it was banned in the 90's but it is still everywhere and I mean everywhere from wall glues to mortar paste to air conditioning pipes and especially around heat pipes. The blue/purple one "crocidolite" is the most dangerous and it will almost 100% lead to lung cancer if breathen even short period of times. It is 1000 times more dusting than the "safest" white asbestos "chrysotile" which is the most common in old houses. Asbestos is safe to touch and is harmless if not disturbed but if you break an object or handle already broken object containing asbestos it releases thousands and thousands of nano-sized needle like fibres in the air. When you breathe them in they get stuck to your lung tissue. Asbestos is really stable and non-toxic. It is chemically and mechanically resistant so when those nano-sized fibres get into your lungs they won't react with anything and won't dissolve but with every breath they stab deeper and deeper to the tissue. So the only thing your body can do against these tiny lung stabbing hypodermic needles is to contain them and produce more and more scar tissue around them until you have lung cancer "mesothelioma". With white asbestos the latency time is from 15 to 40 years before you might develop mesothelioma. With the blue one it is around 4 years and you will be in the coffin. WTC buildings contained around 400 tons of asbestos and when they collapsed majority of it was released in the air thus why lung cancer is the most common cancer and new cases are increasing every year in NYC among other respiratory diseases. Also the US government recently legalized again the usage of asbestos in construction materials not including cement.
@revenevan11
@revenevan11 4 жыл бұрын
Why did they legalize it again? It's a public health threat which many are scared of, and I hadn't even heard of the bill proposing to re-allow it. Is there any pushback against it, or anything people can do to stop it from being used again?
@jonathantanner2168
@jonathantanner2168 3 жыл бұрын
Robert Miles on talking about AI safety research proposed the possibility of a KZbin comment that indeed needed to be cited because of the quality of information. I think this comment is nearly on par with that idea. It was very informative. Now... How do I cite it...?
@fatdad64able
@fatdad64able 3 жыл бұрын
Very interesting.
@FruitingPlanet
@FruitingPlanet 3 жыл бұрын
@@revenevan11 are you aware who is president in the US ? The Trump admin. has done al sorts of striping down environmental and consumer protection policies in favor of industry profits, this is not very suprising.
@BTW...
@BTW... 3 жыл бұрын
@@FruitingPlanet MAGA ... Make Asbestos Great Again ? No thanks.
@calumcookson740
@calumcookson740 7 жыл бұрын
That clock and mirror is a boss level hack
@nanotektor
@nanotektor 5 жыл бұрын
Seems like a clock coupled to an astrolabius, very clever indeed!
@kefsound
@kefsound 5 жыл бұрын
I wonder why we don't use it now.
@H0kram
@H0kram 5 жыл бұрын
@@kefsound Cuz we have light switched on and off at the tip of our finger, so we take it as granted and can be lazy about it, probably missing a couple geniuses in the process.
@morganrobinson8042
@morganrobinson8042 4 жыл бұрын
@@kefsound As cool as it is, you could do the same thing with a parabolic mirror and a flat mirror and maybe a lens to act as a spreader. Of course that requires a place that can make custom glassworks, and a quite bit of counter space.
@Rohandutt
@Rohandutt 4 жыл бұрын
That’s not a hack that’s an appliance If you still don’t understand this , you should think Then think about your phone as a hack
@kjamison5951
@kjamison5951 5 жыл бұрын
Martin Poliakoff is a natural diamond and priceless.
@Jayfive276
@Jayfive276 9 жыл бұрын
"Dr Raman - The Man Of Science." Now THAT is a Marvel Studios film I would pay to see.
@allanrichardson1468
@allanrichardson1468 9 жыл бұрын
Where do his famous noodles come in? JK. I did learn about Raman scattering experiments in physics class. Interesting to learn about the man himself. I once heard another story about a scientist with a collection. The American chemist George Washington Carver, known for his many uses for peanuts, was visited by a wealthy tycoon, who offered to give him a gift to reward him for his gifts to humanity. He asked for a diamond, and the tycoon, thinking he could sell it to help fund the lab, shipped a large uncut diamond to Carver. On a later visit to Carver's lab, Carver showed him his element collection, in progress. Sure enough, the unprotected compartment labeled "CARBON" contained the diamond! I wish I could remember the name of the tycoon, a well known Gilded Age manufacturer.
@Muck006
@Muck006 8 жыл бұрын
Yeah ... "Dr. Raman vs. Transformers" ... [insert a few calculations] "You could not possibly move like you do" {POOF} all transformers wink out of the movie and the battle is won.
@aformofmatter8913
@aformofmatter8913 7 жыл бұрын
Then Godzilla shows up and Raman wins the fight in three words: "square-cube law"
@killmimes
@killmimes 5 жыл бұрын
Not to be confused with: Dr. Ramen. - man of noodles!
@diegomontoya3065
@diegomontoya3065 3 жыл бұрын
Ugh. He learns to punch harder with the use of unobtainium, fights the cgi army and stops the skybeam the end. You owe me 1.25 billion dollars for "brown puma".
@ThZuao
@ThZuao 8 жыл бұрын
4:35 Professor, the first ever actual atom bomb was the one detonated in July 16, 1945, at the Trinity Test Site in New Mexico, US. Hiroshima bomb fell in August 6 of the same year, and was the first nuke to be used in warfare, the first Gun Type design nuclear bomb to be detonated (They were so sure it will work that didn't bothered to test it), the first nuclear bomb using Uranium to be built and detonated, but overall, the second nuke to be ever detonated. The trinity Bomb was of Implosion type, fueled by plutonium, and was identical to the bomb that fell in Nagasaki in August 9. The three bombs completion time is classified, but given the time between the Trinity test and the bombings, there's enough time to assume the two later bombs were built after the test.
@rudybernal78
@rudybernal78 8 жыл бұрын
i think he meant to say the first one used to attack with
@chessengineer837
@chessengineer837 8 жыл бұрын
+Thauã Aguirre impressive critic though :)
@cansmashR
@cansmashR 5 жыл бұрын
Be very careful when handling potentially radio active material. Dr. Raman: send it thru the mail.
@angelbygod7585
@angelbygod7585 3 жыл бұрын
👁👄👁
@zeromailss
@zeromailss 8 жыл бұрын
I feel like ive just visited a museum and got an amazing guide for the tour awesome video,need moar!
@robertnett9793
@robertnett9793 4 жыл бұрын
I imagine every museums tour guided by the Professor would be awesome :D
@SandeepRao84
@SandeepRao84 9 жыл бұрын
I feel so ashamed being an Indian and not knowing much about C.V.Raman. The indian government should learn to give more exposure to the youth to people like this than promoting political figures and bollywood
@raysills
@raysills 8 жыл бұрын
+Sandeep Rao .... and then there is the self-taught mathematical genius, Srinivasa Ramanujan. Another fine example of a brilliant person of India.
@jeffogilvy5141
@jeffogilvy5141 8 жыл бұрын
Unfortunate he died so young...such potenial
@racharlashweta7075
@racharlashweta7075 8 жыл бұрын
+Sandeep Rao true
@sirnukesalot24
@sirnukesalot24 7 жыл бұрын
Unfortunately, it's the same everywhere. Everyone's focus is kept on various distractions from reality as well as on on the fake achievements of public figures who need us to think the world of them... I would slso have preferred that my country's education system treated the sciences as a kind of "history of the arts" style course that systematically takes you through the process of discovery from the discoverer's point of view instead of just glossing over the conclusion and assigning some seemingly disconnected labwork... If someone in the crowd is in such a position to do so, please develop it. Not as a college level elective, but rather as main coursework at the grade-school level.
@kefsound
@kefsound 6 жыл бұрын
Nationalism is silly, especially in science.
@stygn
@stygn 9 жыл бұрын
I think I've been in that salt mine in Poland. A most magnificent place that would rival the mines of Moria or Erebor. Vast halls, with carvings everywhere. A number of churches, and an entire cathedral. One of the most beautiful places I've ever been, with an air so pure that it cleared the longs of asthmatics. Even the story of the mine would fit into Tolkiens works. I will not spoil the story for you, visit the mine, or look it up if you want to spoil yourself. I would love if you went there. Such beauty, carved out of rock and salt.
@marcmoretti2502
@marcmoretti2502 10 ай бұрын
I was thinking the same thing, and I believe you're referring to the Wieliczka salt mine near Krakow. One of the most unique and beautiful places to visit anywhere in the world.
@PointyTailofSatan
@PointyTailofSatan 4 жыл бұрын
Raman was a smart guy. He really used his noodle.
@somebloke3869
@somebloke3869 4 жыл бұрын
Great pun, I was looking for something like this.
@krisanctil794
@krisanctil794 4 жыл бұрын
Me like long-time.
@michaelsinaloense6449
@michaelsinaloense6449 3 жыл бұрын
Nice
@skairymgaming2184
@skairymgaming2184 3 жыл бұрын
@@somebloke3869 bro he is Indian his name is spelled Raa man
@Rohandutt
@Rohandutt 3 жыл бұрын
@@somebloke3869 the name in Hindi is pronounced more like Roman than ramen
@wiertara1337
@wiertara1337 9 жыл бұрын
I was in Wieliczka, the salt mine in Poland. I was licking walls there. They are extremely salty walls :)
9 жыл бұрын
I was there too, me and a bunch of the lads had a see how high up the wall you can piss contest.
@wiertara1337
@wiertara1337 9 жыл бұрын
Seán O'Nilbud ...pissing contest? Damn...
@crunch9876
@crunch9876 9 жыл бұрын
Does everyonlick the walls U lick? Lol
@moneymayhem2000
@moneymayhem2000 9 жыл бұрын
You know salt is more toxic than urine
9 жыл бұрын
You can take pragmatism only so far.
@ianrogers5912
@ianrogers5912 4 жыл бұрын
This museum is absolutely amazing! Thank you for sharing it with us!
@richardorchard8554
@richardorchard8554 5 жыл бұрын
Great hair. This is eccentricity and academia done with style. Every man over the age of 70 needs a well developed and unique eccentricity. I’m still trying to work out where mine is going to go, I still have 20 years but I want to be prepared. You, Sir, are. Legend. Interesting stories, great hair. Love to you!
@fleamau
@fleamau 8 жыл бұрын
*heavy breathing* -hank schrader
@iota-09
@iota-09 8 жыл бұрын
+maurotron very slow breathing -hank schrader
@discomfortzone
@discomfortzone 4 жыл бұрын
Hahahaha
@theyashbhutoria
@theyashbhutoria 3 жыл бұрын
Those are minerals
@jwillisbarrie
@jwillisbarrie 5 жыл бұрын
Thanks for having actual real captions for the Deaf
@Khivraj_choudhary25
@Khivraj_choudhary25 4 жыл бұрын
Yes c.v. Raman.... Great scientist....from South India 🇮🇳
@davidbuschhorn6539
@davidbuschhorn6539 9 жыл бұрын
Raman research institute. Where new Ramen flavors come from. College students owe him so much!
@OhighOSkater
@OhighOSkater 4 жыл бұрын
I truly appreciate Sir Professor. Thank you for teaching us and keeping us interested in chemistry. You are a great man!
@Skwisgar2322
@Skwisgar2322 9 жыл бұрын
diamonds that size are very valuable mostly because the monopoly of De Beers. If they released their inventory diamonds would become pretty much worthless overnight.
@poligon333
@poligon333 9 жыл бұрын
They wouldn't be worthless but they would be much cheaper .
@Saibrock
@Saibrock 9 жыл бұрын
Diamonds will never be worthless. They have real, practical uses in industrial and commercial applications, so there will always be a demand for them. But yes, the value of diamonds is kept artificially inflated.
@TheUselessStoner
@TheUselessStoner 9 жыл бұрын
Skwisgar2322 this is true.
@HarryBalzak
@HarryBalzak 9 жыл бұрын
Skwisgar2322 He chose his words carefully. Most people would have said "rare", but he chose the perfect adjective.
@ameyas7726
@ameyas7726 9 жыл бұрын
***** and debeers have already invented a machine to tell them apart from their natural diamonds
@michaelrose93
@michaelrose93 5 жыл бұрын
For those interested in the mechanics of fluorescence, the UV light excites some of the electrons in the mineral, causing them to temporarily jump up to a higher orbit. Upon falling back, the extra energy is released as a photon, who's color depends upon the amount of energy it took to excite the electron in the first place, creating specific colors for different substances.
@GoatzAreEpic
@GoatzAreEpic 2 жыл бұрын
Yup
@RandomExperiments
@RandomExperiments 9 жыл бұрын
This is such a beautiful collection and I love the stories about some of the pieces. Really nice video! :) It reminded me of Raman spectroscopy at once.
@darkmage07070777
@darkmage07070777 9 жыл бұрын
A genuine clock-work lamp?! That's steampunk level stuff!
@korpakukac
@korpakukac 3 жыл бұрын
Interesting video, but I really miss having a lenghty part about Raman Spectroscopy, which is named after him and used worldwide for identifying minerals.
@Gunzee
@Gunzee 5 жыл бұрын
I still remember the first floor of the natural history museum. It had an amazing collection, I'd spend as long as I could looking at all the rocks and minerals. Wish this was longer going over each piece.
@riche4you1975
@riche4you1975 3 жыл бұрын
6 years ago this vid comes out and only now recommended! Great vid.
@jasonketchum4052
@jasonketchum4052 4 жыл бұрын
This collection is spectacular! Thank you for sharing
@thebestofall007
@thebestofall007 9 жыл бұрын
Good to see some more videos coming from you guys. As I predicted, you show us a box of rocks of some sort and you make it interesting. Thank you.
@Lornda
@Lornda 9 жыл бұрын
would of loved to here the prof's explanation for why the natural rubies flouresed but the artificial one did not. probably where the natural ones absorbed some other materials whist forming and the artificial one in the lab is in a very pure environment. but i would of loved for him to teach me this quirie
@rmxmike
@rmxmike 4 жыл бұрын
I was under the impression that it was artificial rubies which fluoresced as they deliberately put a dye in them. I saw a Nat Geo documentary decades ago on gemstones which included the manufacturing process. The company director said that they’d been offered massive $$$ to leave the dye out. Also, I have a faceted artificial ruby which I bought at a gem show... It does fluoresce under UV. It comes up orange. Was fairly inexpensive, too (I’m an amateur gem collector and gold/silversmith).
@robinswamidasan
@robinswamidasan 3 жыл бұрын
@paul austin That should be "corundum", which is Aluminium Oxide with trace impurities in crystal form. Carborundum is a trademark for silicon carbide, and is used as an abrasive.
@465maltbie
@465maltbie 9 жыл бұрын
Thank you for taking the time to share this with us...I admit that I used to collect minerals as a child but have not done so in many years. Now I must go and pull out my box and look through them...thank you again.
@Muck006
@Muck006 8 жыл бұрын
The "asbestos rock" nicely shows one of the basic rules when dealing with the stuff: DO NOT BRUSH IT!
@saltysoysauce954
@saltysoysauce954 4 жыл бұрын
Do not *break* it, brushing won't get those fibers loose.
@lowpricedpaint
@lowpricedpaint 9 жыл бұрын
Thank you for sharing some of the interesting pieces of this collection. I would like to see more.
@ghost_ship_supreme
@ghost_ship_supreme 4 жыл бұрын
I believe I have a chunk of steel slag crystals too! I never realized it, but I picked up what I thought was a black rock at a store and it looks very similar! It tends to fall apart when you touch it, so I put it in a cabinet where it can’t get damage.
@pluransart1795
@pluransart1795 7 жыл бұрын
I live in Bangalore and I didn't know this place existed!
@Videohead-eq5cy
@Videohead-eq5cy 5 жыл бұрын
Bangalore is one of the most active cities in India when it comes to interacting with the outside world. It's the music capital, the science capital, and there's a lot of cool stuff in the city
@RikthDcruze
@RikthDcruze 5 жыл бұрын
i cant thank you enough for bringing us such an amazing video
@niceguy1602
@niceguy1602 4 жыл бұрын
You’re the best part of my day dr raman. Maruchan is my fav
@metocvideo
@metocvideo 4 жыл бұрын
An outstanding man of science.... talking about another outstanding man of science. Wonderful.
@JoeBribiesca
@JoeBribiesca 9 жыл бұрын
What an excellent vid! Brady, don't stop making these with the Prof...er, I mean, Sir Prof. lol I don't live in the world of academia, nor do I have any advanced education. I actually work as a dimensional metrologist for an automotive manufacturer here in the States, but I freakin' love these science videos! :)
@onesimpleclik
@onesimpleclik 9 жыл бұрын
I would love to see a few more videos like this of C.V Raman's collection :)
@user-wq2jd9qs6i
@user-wq2jd9qs6i 8 жыл бұрын
love his periodic table tie
@mrzulcan4290
@mrzulcan4290 9 жыл бұрын
I'm not into science but I find this quite interesting to know about certain mineral collections. Good to watch more about the famous Dr Raman.
@josephjackson1956
@josephjackson1956 5 жыл бұрын
Nice rock collection, Dr. Raman Noodle
@trvsconway
@trvsconway 4 жыл бұрын
This is one of my favorite videos thank you so much for sharing
@nannesoar
@nannesoar 3 жыл бұрын
I love the way he displayed those opals.
@silversobe
@silversobe 9 жыл бұрын
Incredible collection!
@Steve211Ucdhihifvshi
@Steve211Ucdhihifvshi 5 жыл бұрын
WOW. such an amazing collection
@rodneyowen1850
@rodneyowen1850 7 жыл бұрын
The Professor's hair looks an awful lot like asbestos. I think we should have it tested
@chickenfriedbobcat6090
@chickenfriedbobcat6090 5 жыл бұрын
Well, that proves Richard Pryor and Michael Jackson's hair were NOT made of asbestos.
@thedoctor2102
@thedoctor2102 4 жыл бұрын
He looks like a classic mad scientist
@sharkedog6007
@sharkedog6007 4 жыл бұрын
Lol
@josesequera-andrade2386
@josesequera-andrade2386 4 жыл бұрын
Funny thing. Crocidolite isn't the only "asbestos". Asbestos is just a description for minerals that crystalize into long fibers. Anyway chrysotile is the most common asbestos type used in the US and if you look at it under a microscope it actually looks a lot like his hair. The way my boss described it (I work in an asbestos lab) is that it looks thin and wispy like old lady's hair.
@saltysoysauce954
@saltysoysauce954 4 жыл бұрын
@@josesequera-andrade2386 Asbestos lab? Interesting, what do you do there?
@deeprecce9852
@deeprecce9852 4 жыл бұрын
India has some really brilliant scientist..and in my books sometimes India is really underated in terms of scientific contribution! Well Done India!!
@stevenboelke6661
@stevenboelke6661 9 жыл бұрын
Raman? Light? I have a Raman spectroscooy device in my school's nano lab
@jewberggoldstein7112
@jewberggoldstein7112 4 жыл бұрын
Is it named after him I don't think so?
@PallabDutt
@PallabDutt 4 жыл бұрын
Yes it's named after him.
@Khivraj_choudhary25
@Khivraj_choudhary25 4 жыл бұрын
हाँ भारत की
@KitChen5548
@KitChen5548 7 жыл бұрын
They're minerals, marie
@ronfazio3524
@ronfazio3524 4 жыл бұрын
Wow. Really nice to watch.
@tarrySubstance
@tarrySubstance 7 жыл бұрын
please do more of of these videos love it
@scruff_uk
@scruff_uk 9 жыл бұрын
Fascinating stuff. Thank you so much.
@mithrandir491
@mithrandir491 9 жыл бұрын
wow..he has such a nice collection.
@MadhuriSharma612
@MadhuriSharma612 9 жыл бұрын
Professor and Brady, It would be interesting if you made a video explaining how Raman analysed the liquid :) Just as always,wonderful video!
@MrRockingharsh
@MrRockingharsh 7 жыл бұрын
how can people dislike these videos. The professor is a delight to watch!
@digitalghosts4599
@digitalghosts4599 8 жыл бұрын
He truly was a man of science!
@simonpeter5032
@simonpeter5032 4 жыл бұрын
4:26 Atomic Bomb stones you came to see.
@thecianinator
@thecianinator 3 жыл бұрын
Thank you
@jasonplant5432
@jasonplant5432 4 жыл бұрын
This is a great video. Thank you sir.
@ferdinandwoehllerman
@ferdinandwoehllerman 4 жыл бұрын
Love those vídeos.
@3800S1
@3800S1 9 жыл бұрын
great collection!
@paparoysworkshop
@paparoysworkshop 3 жыл бұрын
6:18 I had some of that stuff when I was a kid. I often picked at it and over time, it became smaller and smaller and eventually, not enough left to keep. So don't worry about picking it up. It won't bite...
@pk-pj4sz
@pk-pj4sz 3 жыл бұрын
so cool Way cooler than the stuff I looked at when I was a kid
@huertaxrdjl
@huertaxrdjl 9 жыл бұрын
Outstanding
@fugamante1539
@fugamante1539 5 жыл бұрын
Dr. Raman was a titan of scientific research. What a marvelous man of science he was!
@shanmuk1983
@shanmuk1983 4 жыл бұрын
Very nice video...thank you...
@n00bspanker
@n00bspanker 9 жыл бұрын
Finally a new video!
@sitarasrini3138
@sitarasrini3138 9 жыл бұрын
dear prof, are you still in india? its probably too late, but i'm really happy to see you make videos in the same city i live in!! would have loved to meet you and Brady.....keep up the great work! love your channel.....hail chemistry!
@salogel88
@salogel88 3 жыл бұрын
Finally found out that that rainbow-stone that i got from my aunt years ago is carborundum crystals. Thanks a lot. Interesting collection.
@monkfoobar
@monkfoobar 4 жыл бұрын
5:00 “...quite careful...send them to me...” so much for the mail man that delivered them.
@TheGodParticle
@TheGodParticle 5 жыл бұрын
Such a amazing mind, photographic, I so wish my mind was photographic. Cheers people
@b1aflatoxin
@b1aflatoxin 6 жыл бұрын
What a great video!
@Roy_Godiksen
@Roy_Godiksen 9 жыл бұрын
Incredible!
@oracleofottawa
@oracleofottawa 9 жыл бұрын
Top quality stuff....
@mrkanenas
@mrkanenas 4 жыл бұрын
He is the kind of proffesor who motivates you to be a scientist
@dakotalee4329
@dakotalee4329 5 жыл бұрын
I wanna meet this guy and chat all day long. 💚🤓 Thanks for another great video, Sir!
@justincasey5975
@justincasey5975 4 жыл бұрын
Fascinating.
@tolkienfan1972
@tolkienfan1972 Жыл бұрын
I love these videos
@josephjackson1956
@josephjackson1956 4 жыл бұрын
This is a very nice rock collection.
@joaokennedymornelas
@joaokennedymornelas 4 жыл бұрын
Adoro seu trabalho
@yogidemis8513
@yogidemis8513 4 жыл бұрын
I read about this dude. He was a certified genius! He lived a interesting life!
@DerangedTechnologist
@DerangedTechnologist 2 жыл бұрын
[Apologies if someone has already brought this up.] Remember that all ruby laser rods are synthetic; they fluoresce very brightly, even more so than natural ones. I'm not sure what prevents the synthetic specimen in Raman's collection from fluorescing well, unless perhaps the doping level is excessive.
@Linkwii64
@Linkwii64 9 жыл бұрын
What they are missing in the collection are lighting crystals. created after the lighting had strike the ground. You will have to be extremely lucky to find one.
@VallornDeathblade
@VallornDeathblade 9 жыл бұрын
Your mean Fulgurite right? Considering the other minerals he had there I'd be unsurprised if they had some but just didn't show them on this video.
@Linkwii64
@Linkwii64 9 жыл бұрын
Vallorn Sorry for the late reply, but I am not sure what they call them.
@johnnyscott3698
@johnnyscott3698 4 жыл бұрын
If you ever go to NZ, they have a classic mineral collection in contemporary labs at Thames with an original gold battery that is still operational. It is utterly unique
@kurtstory9466
@kurtstory9466 9 жыл бұрын
I would like to comment on the larger ruby which Martyn has dubbed "artificial" at 5:55. The crystal habit and surface striations indicate a natural ruby/corundum crystal--not a flame-fusion synthetic. Many natural rubies fluoresce, but others don't. The difference is usually due to the presence of iron, which quenches the fluorescence over a certain amount. Synthetic rubies tend towards higher amounts of chromium and often fluoresce brighter than natural, since they have little iron. I'm unsure if this statement is from Dr. Raman's notes or Martyn's; my sources are gemological journals and mining corundum. But don't take my word for it--consult a mineralogist or gemologist whom you trust.
@rafaelmacas
@rafaelmacas 4 жыл бұрын
Professor, you look so charismatic that my dream is to give you a hug one day! By the way, excellent video as always!
@Olhado256
@Olhado256 9 жыл бұрын
That salt mine in Poland was probably Wieliczka near Cracow. It would be an awesome place to make a video about salt!
@townsville69
@townsville69 4 жыл бұрын
Omg this place is like a fantastical wonderland ! I could spend weeks in there.
@adamsymborski1520
@adamsymborski1520 9 жыл бұрын
I find the professor really quite exciting.
@jessechen998
@jessechen998 9 жыл бұрын
How come artificial ruby doesn't florescent and the natural ones does?
@OOZ662
@OOZ662 9 жыл бұрын
Artificial ruby is "pure." Contaminants in the natural stones are what make them glow, just like the bigger rocks excepting the contaminant is dissolved more finely so it doesn't look like scales or large chunks.
@jimbob7568
@jimbob7568 4 жыл бұрын
@@OOZ662 corundum fluoresces regardless of it being natural or synthetic, it's probably a contaminant inhibiting fluorescence
@ValThracian
@ValThracian 4 жыл бұрын
@@jimbob7568 Or maybe the "artificial ruby" is made out of cubic zirconia.
@Toastmaster_5000
@Toastmaster_5000 9 жыл бұрын
they're MINERALS... oh wait.. he already said that.
@wjnahuy
@wjnahuy 4 жыл бұрын
Dude that is incredible
@mubarakpasha7378
@mubarakpasha7378 4 жыл бұрын
Very very nice video thank you so
@andyshelly3473
@andyshelly3473 4 жыл бұрын
where have you been my old friend , i miss your great work , love science its my language .
@MyAscetic
@MyAscetic 8 жыл бұрын
I live in Bangalore. Didn't know this place existed!
@samanthaqiu3416
@samanthaqiu3416 4 жыл бұрын
That mirror-clock would be a fantastic steampunk decorative device for the home
@ELECTRICMOTOCROSSMACHINE
@ELECTRICMOTOCROSSMACHINE 5 жыл бұрын
very cool!!!
@PinkChucky15
@PinkChucky15 9 жыл бұрын
Great video, very interesting :-)
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