Prince Rupert's Drop vs Molten Glass [video]

Post by kragen » Mon, Apr 17, 2023, 3:27 AM UTC

shagie wrote: post #6

Some asides... --- The purple glasses they wear are didymium. Photographers use a less intense version of that material as a "red enhancer filter." The spectra of the glasses ( https://www.colby.edu/chemistry/CH332/laboratory/didym-spec.... ) have a very low transmission from 572 nm to 585 nm. That's a yellowish color. The sodium vapor lights (those yellow street lights) are 589 nm. For photography, if you block the…

Post by forrestthewoods » Mon, Apr 17, 2023, 3:45 AM UTC

ramraj07 wrote: post #3

carterschonwald wrote: post #2

Dustin’s high speed videos are an incredible treasure trove of science and engineering to learn from.

Does it all have to be 30 minutes though? Not just him to be sure but I’m not a fan of YouTube’s crusade to incentivize long form content which just seems to have made everyone pad out every topic as much as they can. Very rare have I seen 30 minute videos that truly deserve that time commitment.

Post by whoisburbansky » Mon, Apr 17, 2023, 3:52 AM UTC

kragen wrote: post #11

shagie wrote: post #6

Some asides... --- The purple glasses they wear are didymium. Photographers use a less intense version of that material as a "red enhancer filter." The spectra of the glasses ( https://www.colby.edu/chemistry/CH332/laboratory/didym-spec.... ) have a very low transmission from 572 nm to 585 nm. That's a yellowish color. The sodium vapor lights (those yellow street lights) are 589 nm. For photography, if you block the…

it's funny that glassblowers still call their sodium-blocking glass 'didymium glass' 138 years after von welsbach discovered that didymium doesn't actually exist, isn't it

Post by userbinator » Mon, Apr 17, 2023, 4:19 AM UTC

shagie wrote: post #6

Some asides... --- The purple glasses they wear are didymium. Photographers use a less intense version of that material as a "red enhancer filter." The spectra of the glasses ( https://www.colby.edu/chemistry/CH332/laboratory/didym-spec.... ) have a very low transmission from 572 nm to 585 nm. That's a yellowish color. The sodium vapor lights (those yellow street lights) are 589 nm. For photography, if you block the…

Post by code_duck » Mon, Apr 17, 2023, 5:10 AM UTC

kragen wrote: post #11

shagie wrote: post #6

Some asides... --- The purple glasses they wear are didymium. Photographers use a less intense version of that material as a "red enhancer filter." The spectra of the glasses ( https://www.colby.edu/chemistry/CH332/laboratory/didym-spec.... ) have a very low transmission from 572 nm to 585 nm. That's a yellowish color. The sodium vapor lights (those yellow street lights) are 589 nm. For photography, if you block the…

it's funny that glassblowers still call their sodium-blocking glass 'didymium glass' 138 years after von welsbach discovered that didymium doesn't actually exist, isn't it