Calcium - Periodic Table of Videos

[@empedocles200]

The way the Professor calmly explains how a calcium car would burst into flames in the rain is brilliant.

[@yulio3000]

Haha "I found this Barium Sulfate while I was walking... I found this sheep pelvis while I was walking.." Where the fuck is this guy walking!?

[@dovelay]

"This is a pelvis of a sheep... I found it when I was walking one day." oh my word that is just hilarious!

[@guz897]

Tricalcium phosphate (bones) Density: 3.14 g/cm³ ≈ π g/cm³

[@thepopemichael]

The burning the calcium portion of the video is played twice. Otherwise it's an amazing video, as usual! Thanks for brightening my day :D

[@MegaSkills9]

A scientist went for a walk. He found a large piece of white chalk. The Calcium's nice, but to be quite precise, it's really not worth a long talk. I'd rather find bones of a sheep. It's something I dreamt in my sleep. And maybe the pelvis of a young sheep named Elvis. Now that would be rather unique.

[@jimsvideos7201]

5:49 If that isn't how she answers the telephone I'd be terribly disappointed.

[@simonpender8331]

Every time I watch your videos I am jealous of your coffee cup, oh, and your tie.

[@shams582]

I love how our synapses using calcium. Brilliant! It's a very charming and useful element, as well as Professor's videos!

[@ThePrimith]

...But what of the Helvetica Scenario?

[@yawaitzy]

"this is a pelvis of a sheep... i found it when i was walking one day" --WIN

[@FunnyHacks]

For anyone still in doubt. The two burning clips are rounghly at 5:35 and 6:55. They have a different choice of words, different camera behavior and another camera is visible in one, but not the other. Hope that helps. - Kevin :)

[@Yynzr]

It's fitting that I am drinking a glass of milk right now. :P

[@cameronanimeangel]

I like the part on the water getting to acidic. Reason being is we are losing a lot of Coral Reefs in the world which need CaCO3 in order to make their bodies but due to high of acidic levels in the water they can't make them some times, or they do a bleaching effect. Coral Reefs are like our earths EKG monitor the more color and more reefs the better the earth is. The whiter and less of them the earth is not so good. Keep up the videos, and happy holidays.

[@Brassur]

Why wasn't the Helvetica Scenario or Intelligent Calcium mentioned? A follow up video is required!

[@MathewTitus]

I think it would be important to point out that the chalk found in Dover isn't the same that's used to write on blackboards. The Dover chalk is made Calcium Carbonate while the stuff used on blackboards is Calcium Suphate (a close relative of Plaster of Paris) That confused me for a very long time... all that talk of chalk! ;)

[@trespire]

@Roshkin It's a practical question of cost effectiveness. N2 is very abundant in the atmosphere so it's relativly cheaper to separate and purify. So if N2 can do the job this is usually the first choice for science and in industry. As the scientist said (Debby), we want to prevent oxidation of Ca in its pure metalic form. A nice dry N2 atmosphere can do the job very well because it displaces Air, which has 8% O2 (if I remember !), and also displaces any moisture.

[@AhoSenpai]

I heard It's been hypothesized that during a fever our body raises it's temperature mainly to heat up the bones and free some calcium from them. And the reason being that leucocytes use some form of calcium to travel around the body, and if the calcium-level of our body is not high enough, the body will need to get more from bones. And from this follows that fevers can be treated many times by taking some extra calcium. Like Calcium-lactate that is easy to turn into Calcium-bicarbonate, which is

[@Muonium1]

@Roshkin Cost. You're breathing almost 80% N2 right now, but only 1% argon. Most labs have a large dewar of liquid nitrogen outside the building for scientists to use. Because the second (I think) law of thermodynamics tells us dewar flasks must always be imperfect, a small amount of heat always makes it into the inside of the container and so a small amount of N2 is always boiling off. This extremely pure, dry gas is then used for "house nitrogen" in most labs.

[@tom220289]

brilliant! , i would love to see a video on the chemistry of them re usable hand warmers

[@th3em]

"This is the pelvis of a sheep. I found it when I was walking one day." Classic Professor....

[@shalafi4]

@Roshkin the bond between N2 (3 shared electrons) is much stronger than O2 (2 shared electrons). Calcium just isn't reactive enough to break all 3 bonds that N2 has but is reactive enough to break the 2 bonds in O2

[@thyrsis1971]

Most caves that are open to the public in the US that I've been in make a big deal about them being "living systems" where the formations are still growing, and frown on any touching of stalactites and stalagmites. Cave of the Winds above Colorado Springs, for example, actually has metal mesh in place to prevent visitors from getting at the "soda straws". However, as far as I'm aware, this is a fairly recent realisation, and probably, sadly, wouldn't have been a problem forty or fifty years ago.

[@TheRealHelvetica]

The great thing about science is that it's separate from religion and politics. It doesn't matter if you "believe" it doesn't exist or that it's a man made problem. The empirical evidence overwhelmingly points towards the fact that it exists and it's a man made problem.

[@thyrsis1971]

I was confused by this too... I think that the Prof mis-spoke, and meant to say that (rather than temperature) as atmospheric CO2 levels went up, this would increase the amount of CO2 absorbed by the oceans (more available to absorb at the same relative pressure). The Wikipedia article (don't laugh) on this subject seems to be well-sourced with plenty of further reading... look for "Ocean Acidification"... hope that helps.

[@oisiaa]

@Loverboy586 I think it is the same experiment from two cameras. In the second shot you can see another camera running.

[@XioNilrem]

@periodicvideos And you did a marvelous job at it. To me, it looked like it was taken as two takes and instead of using only one of them, you decided to use both. I am just guessing but; in the video, the first one was shot after the one shown later. It is only a guess though, I think it is that way since she was more certain of the impurities the first part, and not so sure second. Anyway, great job and keep up with good work!

[@Anonymous71575]

You couldn't have calcium wheels in your car, well you could, but the first time it rained your whole car would go up in flames.

[@skeebert]

So suppose I were to grind up stalagmites and use it as a seasoning.. Would that be good for my bones?

[@Sturrmm]

Might I suggest you add some more tags to your videos Brady? It might help more people to find these gems! Maybe things that are related to the video or even more general like "science" or "educational"

[@farmacista0000]

love this guy!!

[@xvancexable]

@mewrox99 The salts would usually take on the colour of its cations I suppose. If not, iron(ii) salts would be many other colours instead of being green. Correct me if I'm wrong!

[@MegaSkills9]

I just posted a new (and better) poem above. It's for those of you that wanted to criticize my first one. Hope you like the new one. ;-)

[@thepopemichael]

@periodicvideos Sorry about that. I thought she did considering she said the same exact thing twice. I assumed it was either the video or a second take added in as padding. Either way, like I said, you made my day. Your videos are always a bright spot in my life! :)

[@riveness]

@ Rohhkin; Nitrogen is far cheaper to produce than dry noble gases. The purpose is to keep out moisture and stop/reduce reactions.

[@888Xenon]

@Roshkin Nitrogen, because of how common it is (around 70 - 80% of air) is much much cheaper than a nobel gas, the most common of which in the earths atmosphere is Argon (around 1% of air), and is still quite inert at room temperature and pressure, a lot more so than Oxygen for example, so although ideally the atmosphere around calcium would be helium, or neon, nitrogens cheapness and relative affectiveness render it the most suitable.

[@marko1188]

Great video. Keep up the good work in 2011! Greetings from Estonia.

[@wagelaborandcapital]

@Radl0activE the rise in temperature does not have a large enough effect to prevent more carbon dioxide from being dissolved into the ocean. Although increased temperature does result in decreased solubility in the case of carbon dioxide, the global temperature only rises a few degrees, which is not enough to dramatically change the solubility.

[@aqnd]

@DancingHorses26 I think it's the camera's inability to capture the true colour of the flame. Once it gets less intense (near the end of burning), you see the redness

[@MrBobillion]

A drop in pH means they are more acidic... and the oceans are quite vast, you know? A lot of water in there. For the ENTIRE OCEAN to drop even .1 pH is actually quite substantial. And you'd be surprised just how sensitive life can be to, you know, the acidity of their entire environment. People have good reason to worry. Maybe we should just, I don't know, lower the amount of CO2 we release? Why is this such a difficult thing to understand?

[@maszlagma]

I swear to god, I could listen to this all day!

[@tmmullenhevey]

You could have a whole youtube channel dedicated to calcium's role in biochemical pathways. Calmodulin could have its own mini series!

[@McStrugs]

2:10 is that a 3d printer in the backround?

[@wagelaborandcapital]

@Radl0activE Carbon dioxide dissolved in water produces an acidic solution. The more carbon dioxide is dissolved, the more acidic it becomes. The oceans happen to store more carbon dioxide than anything else on earth, and will continue to absorb more as it is released into the air. Because carbon dioxide is thought to be the primary greenhouse gas that causes global warming, it would make sense that more global warming = more carbon dioxide = a more acidic ocean

[@Works42]

0:10 - Most useful tie EVER.

[@michielstikkel]

Where can I buy such a tie like that with the periodic table on it?

[@vladislavmadr9184]

Since our bodies needs to keep our blood at a stable acid/base ratio, base minerals such as calcium are pulled from bones and teeth to normalize the acid/base ration after drinking milk.

[@Bacopa68]

Beans, collards, any type of fish you eat the bones of, and the soft ends of chicken bones are very high in calcium.

[@lyssiemike4469]

is the screen saver transferred from one monitor to the next?

[@Roshkin]

@trespire So the Ca doesn't react at all with N2 because there aren't enough electrons in the N2? Or is that the slight tarnish on the Ca? I thought it could be trace O2. And if memory serves me, there is 21% O2 in the atmosphere.

[@tommy2ter]

There is so much geeky love going on in here! I LOVE IT.

[@feiyangflash]

Nice to hear that magnesium alloy is mentioned here.

[@viper100200]

@oisiaa No it's not listen to what she says before she burns the calcium compound it's different and uncut therefore two different scenes I'm sure the reason she repeated that there may be some sodium in there is because she didn't think both takes would be used just one.

[@RK4000]

as i recall, after ~30 people cant replenish the calcium in their bone, however a healthy intake of calcium would ensure a healthy amount of calcium in the body so that the body wont have to use the calcium in the bones. hence preserving the amount of calcium in bone.

[@mattlm64]

But what about the Helvetica scenario?

[@trespire]

@yellowmetalcyborg Vitamin D is needed to metabolize Ca. so sun exposure is also important.

[@glenwoofit]

Another great video, Thanks!!!!!!!!!!!!!!!

[@stigomaster]

Do you have any experience with the Helvetica scenario?

[@Andreazor]

dictionary reference com/browse/criticise (Replace spaces with dots) You'll have to quote me a few of those great poems. A saying is hardly subject to any rules, they're sayings, there are no rules for sayings.

[@shune84]

0:39 speccy 6 eyes

[@heloisacvilikas]

Who needs Hot Wheels when you can have calcium wheels?

[@s0nnyburnett]

How often does the professor find skeletal remains whilst walking around?

[@xvancexable]

@redshiftexperiment All non-metal oxides are acidic and therefore can dissolve in sea water to form carbonic acid.

[@iSOisoleucine]

People are very short term. The common human's mind is so very narrow in scope that that do not have the capacity to understand and be amazed at the wonders of such works.

[@1maN008]

You sir, are amazing!

[@dezziss]

i really like your videos, but on this one the editing is a bit messy. but still i liked it. keep em comin'

[@user21XXL]

could you explain what "lime light" is? and show it?

[@holdmybeer]

why do the best teachers have the craziest hair? my favorite high school science teacher had crazy hair. i laughed when you said car wheel made of calcium.

[@Craydon]

So could you make an alloy with calcium in a vacuum and come up with a metal that wouldn't react? I think of most elements as stellar elements by the way.

[@SaintCog]

@ 5:00 referring to to the Naica mine ?

[@Insatanic]

I love the professor

[@dangerouslytalented]

@garryentropy Well, the tights usually stay up but if you are lucky they MIGHT come down for you.

[@MegaSkills9]

Hey... great idea. Thank you. (I gave you a thumbs up.)

[@MegaSkills9]

Thank you.

[@Karhuu1]

Wouldn't warmer water accually make the CO2 less soluable? (the colder the liquid the more soluable gases usually are)

[@user21XXL]

@Halo3ForumEurope do you know what connects spotlight and lime? i heard that limestone emits light when exposed to high temp. I'd like prof. to tell us something about it

[@SuperibyP]

Loving the reference!

[@MegaSkills9]

There once was a young sheep named Elvis. Who rather liked shaking his pelvis. He stood in the meadow, until he was dead-o, and then they collected his pelvis. ;-)

[@RefinedApe]

How do you convert conventional calcium into intelligent calcium?

[@a.g.9847]

a tip for an updated calcium video, do an experiment

[@the-thane]

6:08. Automatic Google Captions... brilliant.

[@TadRaunch]

What makes green flames?

[@GKuriboh]

Stalagmite MIGHT make it to the roof one day. Stalactite holds to the roof TIGHITly.

[@Ethernet3]

@TadRaunch strontium i believe

[@stardude692001]

plus shells were around for billions of years including when CO2 levels were literally ten times what they are today.

[@redshiftexperiment]

why would CO2 disolve into the sea 2:00 ? sorry if this is a stupid question.

[@AlexBradleyPopovich]

Not true. It does not de-mineralize your bones. By the time it is in your blood, the pH has changed. Inside your body, you are alkaline, save certain parts of your digestive tract. Even then, your blood is in a closed system, so your organs are not exactly covered in it. Also, almost everything we eat is acidic.

[@WeaselWJ]

@redshiftexperiment Because just like some solids and liquids gasses are soluble in water.

[@xDestroyer2x]

@TheRealGeriBoss It's actually a container.

[@zetsevs]

@HeavensMercy so he has a tie with a number 42 on it then?

[@garryentropy]

@superdau mnemonic, thats the word I was looking for!

[@JordanArseno]

How do we know it's the calcium that is red in the flame-test and not the chlorine?

[@Desmaad]

@genericmember1 It was probably a wild or feral sheep.

[@samuellanckmans]

Super Vid once again!!! :D

[@Toerme]

All real professors have a sheep pelvis in their office, who knows, might come in handy some day.

[@aurabeaver]

Nobody asked, but Calcium is my favourite element!

[@periodicvideos]

Always like to know people’s fave element.

[@mixolydian2010]

Another great video! I am working my way through the series and i am really enjoying them all. I also find the female scientist rather pretty too. Regards to them all.

[@TheSpankymonkey]

Thanks for the videos, i enjoy them. If i could have one wish for next year though.... it would be a nice explosion. I will leave the details to you but the bigger the better ;-)

[@punishedexistence]

Never saw the inside of a stalagtite, interesting. I like how he says his friend was a naughty boy breaking it off, and naughty indeed, but in the name of science, all is fair.

[@TheBetterGame]

@SprodeBoy I think brady does his own.