Тёмный

Finding Zinc at home - Zinc for casting - Pouring Zinc metal bars and shot 

Chris Ralph, Professional Prospector
Подписаться 111 тыс.
Просмотров 48 тыс.
50% 1

Опубликовано:

 

28 сен 2024

Поделиться:

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист
Посмотреть позже
Комментарии : 171   
@mininhawaiian2911
@mininhawaiian2911 4 года назад
This was cool Ralph! I’ve never heard anyone do a zinc video!! I watch a RU-vid series called “ghost trails and gold towns” about a historian who tells amazing stories of old time prospectors running into lodes... he mentions multiple stories of huge veins of zinc Or galena that were seen but lost by old time prospectors... The stories take place in Canada where there seem to be lots of those sorts of deposits.. It was very informative to see you explain where to find zinc in modern machinery :D Thank you for such a great video and look forward to seeing the zincs relationship to becoming silver and gold 🤔
@ChrisRalph
@ChrisRalph 4 года назад
There were some that were mined. Most zinc in veins is present as Sphalerite, Zinc sulfide.
@Toast4Toasty
@Toast4Toasty 2 года назад
Hi Chris, this video is very helpful especially in my case because I wanted to re-plate my very rusty motorcycle bolts and other metal brackets. Thank you for helping me identify the zinc metal and also how to melt it. Great video!
@ChrisRalph
@ChrisRalph 2 года назад
Glad it helped.
@weshawkins7165
@weshawkins7165 4 года назад
Good video Chris. Hope your doing well and staying healthy in these crazy times.
@ChrisRalph
@ChrisRalph 4 года назад
Doing well, that and hope you are well also.
@weshawkins7165
@weshawkins7165 4 года назад
Chris Ralph, Professional Prospector . We’re doing good. Shop slowed down a little with this stay at home order but not much different, I’m usually a stay at home person anyway.
@TheDoItYourselfWorld
@TheDoItYourselfWorld Год назад
Wow, this was so interesting and informative. I follow you with my prospecting channel. Every time I look for something there you are. Lol. I am going to be casting metal soon and was looking into zinc.
@ChrisRalph
@ChrisRalph Год назад
Awesome, thank you!
@kirkusarelius3365
@kirkusarelius3365 Год назад
Just found your channel. I'm hooked! Love the enthusiasm and knowledge, Thank You
@ChrisRalph
@ChrisRalph Год назад
Awesome, thank you!
@DaleDuffy
@DaleDuffy 4 года назад
Really interesting video *as always*. Learned a couple things about zinc I didn't know prior....thanks again Chris...!
@ChrisRalph
@ChrisRalph 4 года назад
Thanks for the kind words.
@alvinjastrzebski3270
@alvinjastrzebski3270 4 года назад
Hi Chris. Nice videos. Have you heard of using Glacial Vinegar to separate gold from black sand? Vinegar has some weird properties when used at nearly 100%, like being highly explosive and corrosive. You really have to read, understand and follow the MDS data sheet to be safe with this stuff. A fume hood and PPE are a must? The resulting gold is 95% pure though. If you're interested, I will share the second step to complete the process on another venue to be safe.
@ChrisRalph
@ChrisRalph 4 года назад
I've used glacial acetic acid for other things, and no, its not explosive. So I am not sure what you are talking about. Not really interested, but I am glad you enjoyed the video.
@fiokgoogle8779
@fiokgoogle8779 Год назад
Informatìv vagy Greeting Frank from Hungary
@ChrisRalph
@ChrisRalph Год назад
Greetings, Frank
@chemistryofquestionablequa6252
@chemistryofquestionablequa6252 4 месяца назад
This is so useful, thank you! I need some zinc powder for the reduction of nitro guanidine and I could only think of new pennies and battery casings!
@ChrisRalph
@ChrisRalph 4 месяца назад
There is a lot of zinc out there.....
@jimjones395
@jimjones395 3 года назад
This was SO helpful. I needed 1/4 pound of zinc (112 g) and now I can identify literally 10's of pounds of it in my garage in fence parts alone. Thanks man, great video.
@ChrisRalph
@ChrisRalph 3 года назад
Thanks! I'm glad you enjoyed the video.
@SvenIronhand
@SvenIronhand Год назад
I wish I has 10's of pounds of zinc. I need over 30 pounds of zinc for a project😂
@gagan_gaming_yt5819
@gagan_gaming_yt5819 3 года назад
I also melted these plates and made a coin of 20-30grams 💕 It's easy to melt (500°C)
@ChrisRalph
@ChrisRalph 3 года назад
good work!
@gagan_gaming_yt5819
@gagan_gaming_yt5819 3 года назад
Thank you 💗 i could make more but in many batteries managnese or mangnisium had distroyed zinc plates 😓
@awworkshop3936
@awworkshop3936 4 года назад
Great work..😍
@ChrisRalph
@ChrisRalph 4 года назад
Thanks a lot 😊 I am glad you enjoyed the video.
@oussamalasfer4860
@oussamalasfer4860 4 года назад
Wow!!! I didn't know that thank!!
@ChrisRalph
@ChrisRalph 4 года назад
No problem! I am glad you enjoyed the video.
@aimenabdul-basset9442
@aimenabdul-basset9442 Год назад
great video !! I would like to know how I can differentiate between zink and tin metals ?
@ChrisRalph
@ChrisRalph Год назад
tin has a much lower melting point than zinc-at only 232 degrees Celsius compared to 419 degrees Celsius for zinc. Zinc reacts with lye to liberate hydrogen while tin does not.
@aimenabdul-basset9442
@aimenabdul-basset9442 Год назад
@@ChrisRalph lye is sodium hypochlorite, isn't it .
@ChrisRalph
@ChrisRalph Год назад
NO, lye is sodium hydroxide.
@AutodidactEngineer
@AutodidactEngineer 11 месяцев назад
I need zinc for my upcoming project of electro plating all of my workshop tools, I have several old col war era wrenches and would like to make them nice and shiny !
@ChrisRalph
@ChrisRalph 11 месяцев назад
That sounds like a great project 👌
@jimv.661
@jimv.661 4 года назад
As you know, but maybe some of your listeners don't, is that Zinc being heavy is one reason it is used to replace lead in wheel weights. It also rings if you drop it on concrete. And, even though it's against the law, you can get a bunch of it from 1982 1/2 to present cents. Commonly known as Zincolns. Although there is the copper wash to contend with.
@ChrisRalph
@ChrisRalph 4 года назад
I think I have enough zinc for the moment, but cents do have the zinc core. I am glad you enjoyed the video.
@jimv.661
@jimv.661 4 года назад
Forgot to mention, and you probably know this too, zinc wheel weights will float on lead if you don't melt the lead at too high of a temp. Zinc melts at 787 and lead at 622.
@and7barton
@and7barton 2 года назад
I wonder if zinc might be a good metal for casting into a bell ?
@ChrisRalph
@ChrisRalph 2 года назад
It casts well but is is too brittle for the vibrations of a bell.
@Dazyredfox87
@Dazyredfox87 10 месяцев назад
Thank you ❤ you answered so many questions!
@ChrisRalph
@ChrisRalph 10 месяцев назад
Glad it was helpful!
@Smithsgold
@Smithsgold 4 года назад
Good info !!!!
@ChrisRalph
@ChrisRalph 4 года назад
Glad it was helpful! Eventually all this virus craziness will pass.
@Smithsgold
@Smithsgold 4 года назад
@@ChrisRalph I hope so I want to get out and meet up and film and find some Gold !!!! I have just the place but it's still under Snow so Know hurry !!!!
@ChrisRalph
@ChrisRalph 4 года назад
Definitely we will make it happen. If Gary wants to join in he'd be most welcome too.
@Smithsgold
@Smithsgold 4 года назад
@@ChrisRalph I'm sure he will !!!!
@johnqueen2754
@johnqueen2754 2 года назад
You could get the scales out for that weight show!!!
@ChrisRalph
@ChrisRalph 2 года назад
OK
@meltedcreations7809
@meltedcreations7809 2 месяца назад
Very informative. I keep getting crystalizing when I pour zinc alloy into molds. I see that your bars are nice and smooth. Any idea how to stop the crystalizing?
@ChrisRalph
@ChrisRalph 2 месяца назад
Faster cooling makes smaller crystals, but inside my bars the zinc is crystalized.
@meltedcreations7809
@meltedcreations7809 2 месяца назад
@@ChrisRalph Interesting. Thank you.
@theaussienurseflipper.8113
@theaussienurseflipper.8113 Год назад
Wot about old Matchbox and hot wheels cars. I think they Zinc, cheers Graham
@ChrisRalph
@ChrisRalph Год назад
They are zinc, but too many things made of zinc to name every one of them.....
@ralphkleyer9324
@ralphkleyer9324 3 года назад
do you have a book or info for silver as apposed to gold?
@ChrisRalph
@ChrisRalph 3 года назад
no.
@adam_clay
@adam_clay 2 года назад
Great video. I honestly thought almost all those items were aluminum
@ChrisRalph
@ChrisRalph 2 года назад
Zinc is much denser and heavier than aluminum.
@surendersingal2192
@surendersingal2192 11 месяцев назад
Thank you sir, it was magical demos n rich exposure how many parts in auto are made of zinc. Color difference between Al n Zinc. Jussojuan
@ChrisRalph
@ChrisRalph 11 месяцев назад
I'm glad it was helpful.
@coreymerrill3257
@coreymerrill3257 4 года назад
How does electrolosis/electroplating seperate impurities from the main metal(or would it be called an element for this purpose?) If one uses gold for the positive(cathode?) and i guess ill say steel for the negative(anode?) , the steel becomes gold plated. How would it lose impurities during transfer and not just particals of all of the types of material being transferred ? If I used a u.s. gold eagle as my cathode material And used .99999 fine gold as the anode , wouldnt I get 90% pure gold plated 24k gold or would it be somewhat purified? I am fairly sure steel would be plated with that 90%gold with the copper/silver they use for gold eagles. .how would the copper and silver get left in the plating solution with a gold anode ? I was watching a video on roughly how four and five or even more pure gold is made.they showed the process and gave little information . but it started by melting the gold sponge , chemically purifying it with the lead oxide/ boneash crucible technique to get 99.5% gold. They then used a dilute acid to turn it into solution and added more chemicals to make the gokd drop out of solution which is washed and remeleted purifying it to .999 fine gold. This is made into ingots , those are rolled and sheared into thin plates and then become cathodes in a huge elctroplating tank. This is supposed to make .9999 fine gold. Its been bugging me. I appologize for being so over the place with my question . I am trying to get it to make some sort of sense.
@ChrisRalph
@ChrisRalph 4 года назад
You are getting into some really technical questions on plating which is not really something I plan to do on my channel. What plates from one side to the other depends on the type of solution you have, what your impurities are and what the electric voltage potential is. There are books, websites and channels that focus on plating.
@coreymerrill3257
@coreymerrill3257 4 года назад
@@ChrisRalph while I didn't realize this was out of the scope of what you are teaching us about , and if i had I wouldnt have asked so as not to take up your time. Thank you for any answer .mentioning what you did actually gives me a better idea of what I should be looking for in said books and webpages ,ect.
@sinelocum
@sinelocum 2 года назад
I was wondering about some of this, too. Like how to remover mercury from amalgamated gold. Or, conversely, how did prospectors use mercury to extract gold from ore. Not electroplating, but very interested in how purification works. Thanks for asking!
@stephenhumble7627
@stephenhumble7627 3 месяца назад
Thank goodness we don't live in world without zinc. Without zinc there would be no telephones or batteries or cars and many other things made of zinc.
@ChrisRalph
@ChrisRalph 3 месяца назад
Zinc is very important.
@normalguy5460
@normalguy5460 9 месяцев назад
Thanks for this video sir, i have like 5-6 gas regulators, will melt them this vacations
@ChrisRalph
@ChrisRalph 9 месяцев назад
Sounds good. Best of luck -
@nicholasdukat2995
@nicholasdukat2995 2 года назад
Maybe a larger bucket of water next time. Tongs could use an upgrade man.
@ChrisRalph
@ChrisRalph 2 года назад
I'm happy with my equipment.
@OktoPutsch
@OktoPutsch Год назад
This is the Zn, beautiful friend This is the Zn, my only friend Zn of our elaborate plans Zn of everything that stands
@OktoPutsch
@OktoPutsch Год назад
You opened the Doors, so i let in.
@ChrisRalph
@ChrisRalph Год назад
OK.
@detectiveelectro2372
@detectiveelectro2372 3 года назад
Zinc has colour bluish white metal. Blue and white colour.
@ChrisRalph
@ChrisRalph 3 года назад
OK.
@MohamedEldakamawy
@MohamedEldakamawy 3 года назад
there is a something called weight scale 😏 5:28
@ChrisRalph
@ChrisRalph 3 года назад
OK.
@stevesrt8
@stevesrt8 3 года назад
i've found a few kitchen faucets that i though were brass...nope..zinc
@ChrisRalph
@ChrisRalph 3 года назад
Interesting!
@detectiveelectro2372
@detectiveelectro2372 3 года назад
Zinc has bluish white colour and brass has yellow colour like gold...and yeah brass is combination between copper and zinc...and gold more shiny than brass...
@d-not-u
@d-not-u Год назад
This will be out secret 🤫
@ChrisRalph
@ChrisRalph Год назад
Uh, OK!
@Kaneo21518
@Kaneo21518 10 месяцев назад
Toy cars are made of zinc too
@ChrisRalph
@ChrisRalph 10 месяцев назад
I think that I mentioned that on the video.
@saint27573
@saint27573 4 года назад
Some of those items are maganese not zinc .
@ChrisRalph
@ChrisRalph 4 года назад
Nope, not manganese. Manganese melts at a high temperature, comparable to iron. Zinc melts a very low temperatures, and these all melted at low temperatures as showing they were zinc or mostly zinc alloys.
@MyHeap
@MyHeap 4 года назад
Interesting. I used to work for Olin Brass / Winchester Ammunition. The shot towers were quite tall. Lead is pour in sieves and allowed to fall a long distance. The air pressure and surface tension of the metal would allow it to form the ball before hitting the water to cool. Different size shot was made based on the sieve used to pour the lead through. Thanks for sharing. Joe
@ChrisRalph
@ChrisRalph 4 года назад
Exactly. I'm glad you enjoyed the video.
@geomcc39
@geomcc39 Год назад
What I learn over my years of scraping Metal and casting, is that you have to be careful on some zinc has Cadmium used as corrosion resistance plating which is very Poisonous
@ChrisRalph
@ChrisRalph Год назад
This is true and even the zinc oxide smoke that comes off the zinc can be toxic.
@shawnhatfield9716
@shawnhatfield9716 Год назад
On another subject but the same in a sense, how do you know when you've added enough zinc and is their a way to rinse the zink out of pgm's? Thanks in advance.
@ChrisRalph
@ChrisRalph Год назад
about 10% zinc is enough. Hydrochloric acid reacts with zinc but not with silver or gold.
@samboheena
@samboheena 2 года назад
@Chris Ralph, Professional Prospector My zinc bars crystalized in the center and look pretty interesting but aren't what I'm trying to do. Am I pouring too hot or cooling too fast?
@ChrisRalph
@ChrisRalph 2 года назад
zinc has a natural tendency to crystalize.... Even if that is not what you want.
@samboheena
@samboheena 2 года назад
@@ChrisRalph i can tell. is there anything that can mitigate that tendancy?
@ChrisRalph
@ChrisRalph 2 года назад
Perhaps - do some research on zinc alloys.
@user-tp1bi6of3v
@user-tp1bi6of3v 4 года назад
Have enjoyed all your videos. Learned a great deal. Have you ever thought ablout doing the history of mining in the old west with a tie into the railroads. Really enjoyed this one. Going to look at some more if time allows. Thanks!
@ChrisRalph
@ChrisRalph 4 года назад
Of course the railroads are not my thing, but I take it that they are something of interest to you. I did two history videos, one on Tonopah, Nevada and the other on Goldfield, Nevada. The introduction to my video on silver ore has a lot about the history of Virginia City.
@ericevans9782
@ericevans9782 3 года назад
My dad was into reloading and when i was younger we watched a programme on how shot gun shot was made. In it the molten lead was pored from over 20 meters high and into water 10 meters deep. This was how they got nice round shot. maybe next time you could try poring into a section of drain pipe lower down (might need a splash gard). I cant wait to get my fourge up and running and will definatly give zinc a go. great informative video. Thanks Eric
@ChrisRalph
@ChrisRalph 3 года назад
I'm glad you enjoyed the video.
@jamisontaylor878
@jamisontaylor878 Год назад
Thank you very helpful
@ChrisRalph
@ChrisRalph Год назад
Glad it helped
@weldor007
@weldor007 2 года назад
Chris , I checked into die casting, it involves molten metal. The process of using powdered metal is called Sintering - the metal never reaches a fully liquid state and in some cases isn't heated at all, simply pressed into the mould under extremely high pressure. Otherwise, a great help in sourcing cast zinc for use as anodes in electroplating. Thanks
@ChrisRalph
@ChrisRalph 2 года назад
OK.
@zombieprinting2670
@zombieprinting2670 6 месяцев назад
1 thing you ultimately get with high pressure is heat. Quite a bit of heat.
@nuhungemisi51
@nuhungemisi51 3 года назад
After the melting process I made to obtain silver, another metal is formed between the slag and the button. what is this or is there still precious metal in it
@ChrisRalph
@ChrisRalph 3 года назад
As I know thing of what you did and the conditions in which you did it, it is impossible for me to say.
@nuhungemisi51
@nuhungemisi51 3 года назад
Thank you very much for your feedback. I guess because I did not roast the sulfide ore before processing, a worthless metal of iron, arsenic and antimony was formed. I solved my problem with different methods. Thank you again.@@ChrisRalph
@sinelocum
@sinelocum 2 года назад
What forge and crucible are you using?
@ChrisRalph
@ChrisRalph 2 года назад
Just standard clay crucibles - the forge is something I bought years ago, I dont remember the brand.
@franchi8601
@franchi8601 3 года назад
What is the purpose of boron or borax in the melting of gold? I know boron acts as a flux, but what are the reasons for using it in melting gold into ingots? At what part of the gold processing is boron used? Does it purify gold nuggets while its melting? Or is it to allow the gold nuggets to fuse together while melting or is it to not let the gold stick to the molting pot? I find this interesting. And boron is non toxic to work with too. Thanks for you advice.
@ChrisRalph
@ChrisRalph 3 года назад
Most gold has impurities with it, including iron oxides, black sand and quartz. The borax captures those and gives a purer gold button or bar. It cleans the gold and helps the gold stick together to the rest of the gold.
@visionwithanurag1048
@visionwithanurag1048 3 года назад
Hey Chris Nice video
@ChrisRalph
@ChrisRalph 3 года назад
I'm glad you enjoyed the video.
@frikkiesmit2695
@frikkiesmit2695 3 года назад
I feel the weight and strength if its something that a piece has broken off i look at the texture on exposed area. Than final quick test small blowtorch. It starts melting quickly it defnetly zinc.
@frikkiesmit2695
@frikkiesmit2695 3 года назад
Lead also melts quick but lot heavier and itself is soft
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed the video.
@HALIYALBETAGERIVLOG2024
@HALIYALBETAGERIVLOG2024 4 года назад
Nice Experiment Video Sir Thank you very much
@ChrisRalph
@ChrisRalph 4 года назад
Glad you enjoyed the video.
@jlosworld4086
@jlosworld4086 2 года назад
Thanks for the great learning experience
@ChrisRalph
@ChrisRalph 2 года назад
Glad it was helpful!
@RedDeckRedemption
@RedDeckRedemption 7 месяцев назад
Huh, guess my scrapyard is stupid, if it ain't copper/brass, gray and nonmagnetic, they call it all aluminum lol
@ChrisRalph
@ChrisRalph 7 месяцев назад
No problem - they are smart. They call it aluminum and then pay pay you for aluminum which is worth much less than zinc.
@pedroaviles9415
@pedroaviles9415 9 месяцев назад
This very educational love it and love your work how many of people realy know about difrent medals then the Mason 😂😆 but keep up the good work
@ChrisRalph
@ChrisRalph 9 месяцев назад
Thanks for watching!
@pedroaviles9415
@pedroaviles9415 9 месяцев назад
Love the posses on braking down medal type into liguid and how much heat and what type eguipment is needed specialy how to exstract real gold keep up the good work im learning alot with these videos
@ChrisRalph
@ChrisRalph 9 месяцев назад
Glad it was helpful!
@joehastings1
@joehastings1 4 года назад
New pennies since 1983 are copper plated zinc.
@ChrisRalph
@ChrisRalph 4 года назад
yes, but hard to separate the copper from the zinc.
@five55-d5g
@five55-d5g 4 года назад
Hi Chris, i wonder about what you mean with converting the zinc into gold. Wonder if you have made the video ? Thanks
@ChrisRalph
@ChrisRalph 4 года назад
Not yet! I am, going to leach some silver ore with non-toxic chemicals and then recover the silver from the solution using the zinc. It is coming soon, maybe in a few weeks.
@five55-d5g
@five55-d5g 4 года назад
@@ChrisRalph How do you solve the problem of selling the gold dust, I mean people must have the certificate for their gold, or otherwise they would be accused of illegal mining, or worse stealing, and so on. The elites controls gold, they make it hard for people to mine the gold without license. Is it legal to prospect gold at river, beach ? Thanks
@ChrisRalph
@ChrisRalph 4 года назад
legal requirements varies from place to place.
@خالدسعد-خ5ض
@خالدسعد-خ5ض 3 года назад
Thanks for having an Arabic translation worth like
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed the video.
@خالدسعد-خ5ض
@خالدسعد-خ5ض 3 года назад
@@ChrisRalph Is there a complement to the process? How to smelting gold and silver with zinc and recovering the gold?
@sureshjisoni7714
@sureshjisoni7714 3 месяца назад
Thank u Sar ji aapane Jinke bare mein bahut acchi Jankari Di Sar ji
@ChrisRalph
@ChrisRalph 3 месяца назад
Ok.
@thamlaaf5988
@thamlaaf5988 Год назад
remind of pen & teller, dont know why
@ChrisRalph
@ChrisRalph Год назад
That is an unusual comment.
@johncourtneidge
@johncourtneidge Месяц назад
Thank-you!
@ChrisRalph
@ChrisRalph Месяц назад
You're welcome! Glad you enjoyed it.
@sciencesikho5942
@sciencesikho5942 Год назад
From India
@ChrisRalph
@ChrisRalph Год назад
Greetings.
@ThePeterDislikeShow
@ThePeterDislikeShow Год назад
Just use pennies from after 1982.
@ChrisRalph
@ChrisRalph Год назад
Too expensive - you can get scrap zinc a lot cheaper.
@ThePeterDislikeShow
@ThePeterDislikeShow Год назад
@@ChrisRalph where are you getting all this scrap car parts? You own some sort of tow business?
@ThePeterDislikeShow
@ThePeterDislikeShow Год назад
@@ChrisRalph By the way, is there a way to color zinc with anodization?
@ChrisRalph
@ChrisRalph Год назад
My zinc was just picked up here and there. there is a process called anodizing for zinc, but its wildly different from Aluminum anodizing. It's radically different--done at 90 to 200 AC volts. It is not a decorative finish and colors range from green through grey to brown, but dyeing for specific colors is not really possible.
@sandmanbub
@sandmanbub 3 года назад
@Whoop!
@ChrisRalph
@ChrisRalph 3 года назад
glad you enjoyed the video.
@nicholaseas114
@nicholaseas114 5 месяцев назад
R there places where u can buy zinc in its natural form
@ChrisRalph
@ChrisRalph 5 месяцев назад
You mean zinc minerals, not zinc metal?
@nicholaseas114
@nicholaseas114 5 месяцев назад
@ChrisRalph I just learning it so if that it's natural form then yes
@ChrisRalph
@ChrisRalph 5 месяцев назад
Search on line for Sphalerite specimens. Sphalerite is the main ore of zinc.
@nicholaseas114
@nicholaseas114 5 месяцев назад
@@ChrisRalph thanks
@beastkeralafanboy...5456
@beastkeralafanboy...5456 Год назад
Sir iam india
@ChrisRalph
@ChrisRalph Год назад
very good
@prdoohan
@prdoohan 4 года назад
Perfect, I was looking for inspiration as to what places in my shed to look for zinc. That pulley wheel hit the spot, I've got a couple spares/surplus. Need some during lock down with an electroplating project!
@ChrisRalph
@ChrisRalph 4 года назад
Glad I could help. There is a lot of zinc out there.
Далее
Melt Metals in the Microwave | The Ultimate Guide
35:29
The BEST Metal Casting Alloy That Everyone Ignores
9:24
ДЕНЬ УЧИТЕЛЯ В ШКОЛЕ
01:00
Просмотров 790 тыс.
Refining Rhodium
17:54
Просмотров 637 тыс.
What is Fool's Gold?
16:19
Просмотров 5 млн
Zinc: the quiet protector
23:16
Просмотров 4,4 тыс.
What Happens if you MIX ALL The METALS Together?
19:47
Making TNT
20:40
Просмотров 1,7 млн
Many Moving Magnets Melting Metal
20:21
Просмотров 2,9 млн