Dope Tech Episode 2

<<@veritasium says : For the first 100 people who sign up, I will personally offset the first month of your carbon footprint on Wren: https://wren.co/veritasium>> <<@Rob_Reviews_Leftism says : Had to throw that BS about evolution in there huh?>> <<@WollumbinWarning says : The Pyramids were definately partly made by Geopolymer... Please investigate.>> <<@Treehouseink-BD says : 21:30 why did he get air balled so bad>> <<@ucfj says : Next time please explain bullet ballistics while getting shot>> <<@Ublomor says : RIP to that nice Aqualung dry suit>> <<@Ublomor says : Forgot to say that the Romans also used to heat the "malta">> <<@eisbar7681 says : bro is so cute when hes smiling.... we don't build long time structures anymore. it's easier for us to destroy and rebuild and destroy and rebuild even if its technically not easier... we have weird morality when it comes to sustainability.... we lost all morality when it comes to sustainability 😂 money is the only thing that matters. we buy cheap plastic instead of good material. we actually waste a lot of money with this weird technique....>> <<@eisbar7681 says : having an extra oxygen supply doesn't make much sense when the actual problem is when you breathe out, cement is going to fill up the gap so you can't breathe in anynore... our lungs inflate and deflate and inflation isn't possible when there isn't enough space because it disappeared. but good luck?😂 have fun? I guess. . Wish i could paint this whole congrete ball🤩🤩>> <<@AI537-n6w says : If that starts rolling, will his neck be strong enough to stop it?>> <<@Brooks-videogames_39452 says : 0:40 cocaine?>> <<@RichardMaster-fj6me says : Very interesting>> <<@laurensdebonnet6030 says : 0:35 watching him ruin a 1900$ drysuit :(>> <<@asiwasb4 says : Thanks for the conversion to metric, wish you did all throughout the video. 10:57>> <<@Loaxmc says : What scares me the most is the thought of a substance 3 times heavier than water pressing on your balls>> <<@עדוצדוק-כ1ה says : In 00:22 seconds it’s look like you having poop>> <<@Jonas-wk8sf says : Thank you for this beatiful video>> <<@NeevIyer says : 21:30 doesn't the guy touch the wet concrete?>> <<@atomicsquirt8082 says : 8:50 now we have clankers. Smh.>> <<@joeyzagari4155 says : Cool, can you talk about LC3 concrete in offsetting carbon emissions>> <<@fyremonte says : Idea. If you do episode that busts scientific myths (like Mythbusters) and explain the science that bust or supports. Just thinking.>> <<@AREA51AI-Reality says : And now try to swim... 😂>> <<@StanTrnik says : What about hemp cellulose and glass/carbon fiber from wind turbine blades mixed in to concrete? You should explain that and bust the myths about wind turbines and silly wood use in different products.>> <<@MillardFeelmore says : $3,000 dry suit, gets in concrete...... I hate this video solely based on that. Still love you though!>> <<@MechaDupek says : I used to repair concrete in college. If you ever have to mix cement or make concrete locally with a portable mixer, don’t get the dry cement powder on your skin. If you do, your sweat will activate the cement and you will get chemical burns.>> <<@WunHungLo99 says : Break the clear container? Better than dying....>> <<@Remy.S7 says : you are intra ball =)>> <<@manda3dprojects966 says : I though he would wait it until it's turn dry and solid concrete and what if he wants to poop or pee?>> <<@izhilin says : 7:00 Impressive! They still use freedom units for testing!>> <<@riiiicc says : Stupid question: can you recycle concrete?>> <<@UnparalleledSpoof says : Only 2 cubic meters of concrete, for every man, woman and child doesn't seem enough. I can't share that... It would be better if it were for each man, woman and child>> <<@davidcopola3783 says : 10:55 The aggregate limestones or bluestones being required to have closer to spherical shape to yield the maximum strength of the concrete cannot be true. The belief may be coming from the fact that the spherical shape has the lowest surface area to volume among most shapes and the spherical shape is considerthe most stable and strongest shape in nature, hence the reason planets a spherical. However, in concrete the surface area also matters that comes in contact with the cement. Therefore, odd, elongated and uneven aggregate shapes are the most preferred aggregate piece shape to yield maximum strength in many concrete applications. It also depends on the chemical bond strength of the particular type of cement.>> <<@danielgetter5993 says : I know this is a comment on an old video. I'm a PhD structural engineer. If I were to teach a course on concrete, I would show this video on day one and expand on segments throughout the semester. The only thing I think you missed is the fact that the chemical reaction is exothermic. In thin members, it's no big deal, but for mass concrete, heat management is very important. Great work!>> <<@bartwilliams4478 says : I am sorry but the CO2 , mitigation is not going to fix anything at all, Carbon dioxide Co2 is not truly destroyed, but the total amount of carbon on Earth remains fixed. Instead of being destroyed, the CO2 molecule is either broken apart (changed into different chemicals) or its carbon is moved and stored in various physical reservoirs across the planet. At .004 percent of the atmosphere it is a minor gas that is completely saturated as much energy within the spectrum it traps with deminishing returns as it increases, the primary climate change is H20 (clouds) with other cycles identified,with many others yet to be identified in such a small timeline that it is beyond ridiculous and government as well as environmentalist cannot tax or regulate. Nobody should be shamed into accepting taxes, limits or cowed into willing giving up your labor, or accept this tripe>> <<@bartwilliams4478 says : My Texas home built in 2018 must have went with the first ever recipe....😮>> <<@pimenta7954 says : She sell seashels on a sea chore>> <<@DawidSwitonManiakowski says : Thank You for this video. It feed my curiosity>> <<@Adoor29 says : “What’s the difference between cement and concrete? people usually mix them up” dad joke.>> <<@crue33 says : :D nice one !>> <<@DarthStygian says : 0:58 two big fish bowls every year that’s it>> <<@ImSoDamn3vil says : Solid video thanks.>> <<@Stellstia says : 21:11 whoa 🤣😂>> <<@Stellstia says : 19:19 who's gonna try it at home 🤣😂>> <<@BlizzardLizardYT says : Not as useful as xenonite>> <<@mangeshsonawane95 says : Americans will use everything except sensible units.>> <<@your_local_henree says : Anyone remember that one episode where daddy pig mixes the concrete manually with a shovel while inside wet concrete then the concrete dries and daddy pig gets stuck>> <<@dianastein5690 says : Someone get him a sledgehammer. We're gonna play some real getting over it.>> <<@FryedFries41 says : Sperm. More sperm then concrete (8.3 billion)>> <<@IB-fz2oq says : The floating experience is similar to the Dead Sea in Israel, where it's extremely hard to go underwater because of the "heavy" water.>> <<@elainskieonerec2458 says : If ur were stuck there forever, your grave will be there too>>