Views : 3,822,749
Genre: Education
Date of upload: Jul 7, 2023 ^^
Rating : 4.955 (1,683/146,535 LTDR)
RYD date created : 2024-05-18T00:47:02.372744Z
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Top Comments of this video!! :3
How is no one talking about that gorgeous vortex ring at 10:48? I mean LOOK AT THE SIZE OF THAT BEAST!!! Amazing catch!!!
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LOVED this video! Was like Deja Vu! I went through all of this about 5 years ago when I started making my own fireworks and rocket engines! From homemade black powder to r-candy, right down to flying FPV quadcopters through fireworks! My favorite pyrotechnic mix is currently sulfur-zinc flash powder! MUCH easier to make and is non-hydroscopic so easier to store as well! You can also change the deflagration rate! I currently use it to make projectiles for my homemade rocket launcher! Come try it sometime! ;-)
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Derek's storytelling is insane right now. From start and end from the same evil spirit's line. Just the perfect way to join multiple footages, different locations and topics woven together as a complete story. To take the explanation parts and seamlessly transitions to practical demonstration, fun, self exploration. From teaching us and being taught and the constant voiceover during it. JUST LOVED IT. this must be my favorite video of yours's in every aspects.
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The reason why copper can produce green and blue colors depending on the environment is that copper ions can exist as cuprous (Cu+) and cupric ions (Cu2+). Cuprous ions produce blue flame color, while cupric ions produce a green one in the presence of halide ions. When a flame contains reducing agents in excess (e.g. candle flame or burning alcohol), then the cupric ions get reduced to Cu+, so the flame will turn from green to blue. As the cuprous salts are generally not stable, blue fireworks usually contain Cu2+ salts and the rest of the mixture is made to have a strong reducing environment (fuel excess), so the cuprous ions are formed in situ during the combustion.
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11:50 In middle school, my parents allowed my friends and I load artillery shell fireworks during 4th of July.
One of my friends loaded the shell in upsidedown by accident. Instead of the THUMP sound you hear when it gets launched into the air, we heard a little PoP, and saw a foundation of sparks pouring out of the mortar.
I knew right away what had happened ๐ฎ and I yelled, "RRRRUNN!!!"
We all scattered as fast as we could. When it exploded, it felt like a major league pitcher threw a handful of hot sand and rice at your back.
No one got hurt, thank goodness
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20:50 idk why but this song makes me feel so grateful to be alive
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I'm 67 and this reminded me that at age 7 I got a science kit for Christmas. The kit had different bottles of powdered metals. We used an old cast iron wood burning stove to heat our house. I would set at the stove with the small front door open and sprinkle bits of the dust into the flame and watch the different colors each type of metal would create. Thanks for the memory.
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@Red0re
10 months ago
Veratasium in 2050: We made nuclear weapons to explain every aspects of it
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