| Pages:
1
2 |
amazingchemistry
Hazard to Others
Posts: 104
Registered: 4-4-2013
Member Is Offline
Mood: Excited
|
|
Nice Videos
I used the on-site search engine but could not find a thread dedicated to interesting chemistry-themed videos on the forum. Perhaps this should be a
companion to the "Pretty Pictures" thread? Here are my contributions:
A nice video on the preparation of uranium yellowcake from ore
http://www.youtube.com/watch?v=BRdZouC7CRo
A video of what is apparently chlorine trifluoride doing some interesting stuff to common laboratory personal protective equipment (Plexiglass, rubber
glove, clean leather, dirty leather, gas mask, wood and wet glove)
http://www.youtube.com/watch?v=M4l56AfUTnQ
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
A lot of guys here on this board have youtube channels dedicated to chemistry. You find them by reading signatures or in some posts there will be
links.
|
|
|
amazingchemistry
Hazard to Others
Posts: 104
Registered: 4-4-2013
Member Is Offline
Mood: Excited
|
|
Ah, but what about those of us who don't have channels and just want to share interesting videos?
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
I was just telling you where to find more videos from members here. Not trying to derail your thread.
|
|
|
amazingchemistry
Hazard to Others
Posts: 104
Registered: 4-4-2013
Member Is Offline
Mood: Excited
|
|
My apologies. Can you post your favorite chem-related video?
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
Lets see, my favorite video..
From my channel probably: Close-Up Deflagrations Mercury Fulminate
If you watch the video change the default setting to 720p HD so you see all the detail. =]
From other channels I don't really have favorites. I like ones that are clean, high definition, they speak clearly and not have a super long intro and
music. I hate k3wl videos where kids post videos of stupid and dangerous things with no safety precautions. Don't get me wrong I love energetics but
only with proper experience and safety.
EDIT:
That is one of my earlier videos though, before I spoke much and camera quality was less than current. Still One of my favs.
[Edited on 5-10-2013 by chemcam]
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
That video was made by a nutcase: he's processing a 40,000 CPM material with virtually NO protection whatsoever. At one point he even seems dead set
to contaminate his own swimming pool! Later he's drying his yellow cake in front of a fan!
Darwin Award or what? 
Hint: it's not really the uranium in there that causes the high CPM!
|
|
|
chemcam
Hazard to Others
Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline
Mood: I will be gone until mid-september, on a work contract.
|
|
In my opinion a lot of the videos made by ReactionFactory seem to be done carelessly; the energetic videos especially. What seems odd to me is he quit posting videos one year ago which is
after he started doing energetics, maybe he was injured?
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
Energetics... you mean explosive stuff?
Injury can't be ruled out: a little knowledge is a dangerous thing.
|
|
|
amazingchemistry
Hazard to Others
Posts: 104
Registered: 4-4-2013
Member Is Offline
Mood: Excited
|
|
I agree about the lack of safety precautions and such. Maybe he does not value his own safety, or the environment? My first reaction when I saw him
vacuum filter into his swimming pool was "what the HELL are you doing?" I did not mean to encourage any disregard for safety. With those caveats, I
still think it's an interesting video because I hadn't seen any uranium ore processing before and this video showed that it can be done rather simply.
What's your favorite video blogfast?
|
|
|
Fantasma4500
International Hazard
Posts: 1677
Registered: 12-12-2012
Location: Dysrope (aka europe)
Member Is Offline
Mood: dangerously practical
|
|
my favorites would be of sound, tho ther eis this one with cesium and flourine
|
|
|
Eddygp
National Hazard
Posts: 858
Registered: 31-3-2012
Location: University of York, UK
Member Is Offline
Mood: Organometallic
|
|
Now, this must be a joke, but I don't get it.
For everyone, I recommend Hegelrast's channel. It is very well explained (with the reactions written out too), it has good chemistry and background music.
He doesn't speak though.
there may be bugs in gfind
[ˌɛdidʒiˈpiː] IPA pronunciation for my Username |
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by amazingchemistry  | | I agree about the lack of safety precautions and such. Maybe he does not value his own safety, or the environment? My first reaction when I saw him
vacuum filter into his swimming pool was "what the HELL are you doing?" I did not mean to encourage any disregard for safety. With those caveats, I
still think it's an interesting video because I hadn't seen any uranium ore processing before and this video showed that it can be done rather simply.
What's your favorite video blogfast? |
Imagine also if he had accidentally knocked his unsecured filtration set up into the family’s home swimming pool!
On a chemical level I was very surprised that he managed to dissolve the ore in nothing but hydrochloric acid: none of the ores he mentioned in the
intro are carbonate based!
My favourite must be the ‘Will it blend?’ series, especially when he puts his 'You have been warned!' award in his blender too. And guess what: it
blends!  There' something Situationist about that! The only question remains
'can he blend his own blender?'...
From an ‘instructables’ point of view, I’d say Nurdrage.
No joke here Eddygp. Natural uranium is only very weakly radioactive, negligible really. A bit like thoriated TIG electrodes. But natural uranium ORE
is a different kettle of fish altogether as his own measurements show all too clearly. This is the stuff Radium is extracted from: nearly the whole
U/Th decay series has had about 4 billion years to accumulate in that kind of ore!
The real danger here is not so much touching it (skin is a good barrier to alpha and beta radiation) but airborne particles that could be ingested or
inhaled and increase the risk of internal cancers developing enormously. Safely processing small amounts of that kind of ore, taking painstaking
precautions re. airborne materials, is possible but the way ReactionFactory is doing it is about as safe as the Radioactive Boyscout’s exploits.
[Edited on 11-5-2013 by blogfast25]
|
|
|
plante1999
International Hazard
Posts: 1936
Registered: 27-12-2010
Member Is Offline
Mood: Mad as a hatter
|
|
I really prefer Chem study videos than new videos, especially nurdrage ones.
Xenon trioxide video , REAL::
http://archive.org/details/research_problem_inert_gas_compou...
[Edited on 11-5-2013 by plante1999]
I never asked for this.
|
|
|
The_Davster
A pnictogen
Posts: 2861
Registered: 18-11-2003
Member Is Offline
Mood: .
|
|
Pretty sure he is fine.
[Edited on 11-5-13 by The_Davster]
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
They don't make them like that anymore, Plante! Good find.
|
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
You know this, how? Preparing NI3 for instance with dirty glasswork and no precautions whatsoever isn't smart. Alternatively the family may have gone
bankrupt after the Hazmat team had finished cleaning up their dwelling...
|
|
|
amazingchemistry
Hazard to Others
Posts: 104
Registered: 4-4-2013
Member Is Offline
Mood: Excited
|
|
Thank you VERY much for the Xe video. I agree, they don't make them like that anymore  Perhaps some of you with channels could do an homage to these nostalgic videos.
|
|
|
MrHomeScientist
International Hazard
Posts: 1806
Registered: 24-10-2010
Location: Flerovium
Member Is Offline
Mood: No Mood
|
|
That uranium video is insanity. Vacuum filtration into the pool, with the setup unsecured teetering on the edge of falling in! In every step of that
video I kept thinking how much contamination they are producing, with such a scarily high CPM material too!
Here's some of my favorites:
Slow-motion lithium combustion: http://www.youtube.com/watch?v=SKZO6BfQf5g
Liquid sulfur crystallization: http://www.youtube.com/watch?v=dE0KeZskurI
Ammonium chloride crystallization: http://www.youtube.com/watch?v=BRNiagLn9Co
|
|
|
phlogiston
International Hazard
Posts: 1376
Registered: 26-4-2008
Location: Neon Thorium Erbium Lanthanum Neodymium Sulphur
Member Is Offline
Mood: pyrophoric
|
|
Explosive polymerization of p-nitro-aniline:
http://www.youtube.com/watch?v=h4pNXAtPJp8
Never ceases to wow those who see it for the first time.
Every time someone experiments with uranium compounds this forum goes crazy over it. You guys sneer at chemophobia, but I am sorry to say you
sometimes seem a bunch of poorly informed radiophobes yourselves. Radioactivity does not equal instant death.
40,000 counts per minute? of what? gamma/beta/alpha? A number in sieverts would be more informative, and he is holding the detecter against the stone.
I am sure the radiation does not pose any significant risk at a small distance.
No, he is not filtering into his pool, he is running an aspirator into his pool. Yes, he may suck up a few droplets and they get diluted into the
100's of liters of pool water. It will not even even come remotely close to exceeding the contamination levels allowable for water for human
consumption.
Do you guys realise how much uranium is in kitty litter? Next time the cat makes a dusty mess, go hide in your fallout shelters. Some people live on
uranium ore or on a monazite beach. People living in those areas do not suffer from more cancer (in fact, current evidence seems to suggest they there
may even be LESS incidences of cancer in those areas).
The excellent sensitivity with which it is possible to detect even tiny spills of radioactive compounds are a great advantage. With the
lead/mercury/azides etc I see sometimes here on the forum you will never now where the tiny droplets ended up. Floor->shoe soles->kids
bedroom->pacifier?
-----
"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by phlogiston | Every time someone experiments with uranium compounds this forum goes crazy over it. You guys sneer at chemophobia, but I am sorry to say you
sometimes seem a bunch of poorly informed radiophobes yourselves. Radioactivity does not equal instant death.
|
Start with a strawman argument and then go on as you meant to, eh Phlog? No one claimed "radioactivity equals instant death".
Inhalation/ingestion of particles with a surface count of 40,000 would mean the distance between tissue and source is essentially zero. The risk of
this causing cancer is all too real, whatever you think of it.
Follow then some more cartoonish pseudo-arguments, producing more heat than light, designed more to try and offend than enlighten.
One really doesn't have to be a 'radiophobe' (did you come up with that all by yourself?) to understand the inherent dangers of radioactive materials,
even in small amounts.
As regards comparing radiological dangers to other forms of hazards (like chemicals), that's a profoundly childish game: each material presents
possible hazards of their own and each stands on their own. Truisms like 'X is more dangerous than Y' aren't helpful when it's Y you're dealing with.
Seems the ignoramus here is phlogiston.
|
|
|
Endimion17
International Hazard
Posts: 1468
Registered: 17-7-2011
Location: shores of a solar sea
Member Is Offline
Mood: speeding through time at the rate of 1 second per second
|
|
Huh, I thought I already mentioned old ChemStudy films somewhere on SM.
It's been a few years since I've downloaded all of them from archive.org in the maximum possible resolution and quality. They're a true gem.
Sometimes I eat lunch and watch those things. 
Regarding the uranium thing, that particular video has been discussed before. I've actually attacked the guy in the comment section, but he seems to
be ignorant about the danger.
High CMP is due to alpha radiation. He clearly uses a different type of probe so he can pick up such radiation.
If it was beta or gama, 40,000 CPM would be a serious external hazard and some shields would have to be considered even if energies of each particle
weren't high.
This way, it's a great inhalation hazard. Dumbass was drying it in front of a fan. 
|
|
|
phlogiston
International Hazard
Posts: 1376
Registered: 26-4-2008
Location: Neon Thorium Erbium Lanthanum Neodymium Sulphur
Member Is Offline
Mood: pyrophoric
|
|
Sorry if it offended you blogfast, but I just meant to say let's not overreact to people doing radiochemistry experiments. IMO it's a very interesting
video, and do not agree the guy is a 'nutcase'. Ofcourse there is some risk involved (and certainly his methods can be improved upon. I agree the fan
is a bad idea, but radiation shielding is really not needed and the pool is no worse than the sewer), but I think it should not be exaggerated. I
believe we better not go into the offtopic discussion here to extensively discuss the extent of the risk. I work with radioactive materials
professionally on a weekly basis and you can call me childish, 'ignoramus' and whatever if you want but I really don't think that's necessary.
[Edited on 14-5-2013 by phlogiston]
-----
"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
|
|
blogfast25
International Hazard
Posts: 10562
Registered: 3-2-2008
Location: Neverland
Member Is Offline
Mood: No Mood
|
|
Phlogiston:
To insult me you'd have to try a lot harder.
I'll ask you a simple question: would you be happy with poolside filtration of a high CPM material and subsequent drying of the end product with a fan
heater if this folly was conducted in YOUR house?
[Edited on 14-5-2013 by blogfast25]
|
|
|
phlogiston
International Hazard
Posts: 1376
Registered: 26-4-2008
Location: Neon Thorium Erbium Lanthanum Neodymium Sulphur
Member Is Offline
Mood: pyrophoric
|
|
I would be allright with the poolside filtration of the amount/type of material he is handling. The few drops/mist that inevitably got aspirated will
be not any significant hazard if they get diluted into the whole pool. Worst case: If the whole setup really topples over and the whole mess goes into
the pool (he should have used good stand) I would probably drain and clean the pool. An annoyance that could have been avoided, but not a serious
hazard to my health.
I think we all agree that the fan heater is a bad idea.
plante1999, thanks for the Xenon chemistry video. Great find!
-----
"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
|
|
| Pages:
1
2 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
