Humphry Davy Biography: How Doing Drugs Led to Sucess & the Arc Lamp
video description
Date: 2022-12-27
Related videos
Comments and reviews: 19
Pixxel
Can I just say, your skill in crafting a lecture and your writing abilities are phenomenal. Then, to string them all together in a logical and compelling series is quite frankly mind boggling. This is a master class, one that people pay hundreds of dollars for. I feel like a little boy filled with the wonder of new and exciting discoveries. Thank you!
reply
Can I just say, your skill in crafting a lecture and your writing abilities are phenomenal. Then, to string them all together in a logical and compelling series is quite frankly mind boggling. This is a master class, one that people pay hundreds of dollars for. I feel like a little boy filled with the wonder of new and exciting discoveries. Thank you!
reply
John
Moving right along Kathy.
You are informative and fun.
My interest is held my bs filter is off.
In my childhood powdered calcium carbide was thrown on a wet patio followed by a match. Eyes were glued shut by melted eye lashes. Eyebrows gone hair singed real good. I was 10 at the time.
Carbide cannons are still for sale.
reply
Moving right along Kathy.
You are informative and fun.
My interest is held my bs filter is off.
In my childhood powdered calcium carbide was thrown on a wet patio followed by a match. Eyes were glued shut by melted eye lashes. Eyebrows gone hair singed real good. I was 10 at the time.
Carbide cannons are still for sale.
reply
Gary
I'm now curious about what the path from arc lights to arc welding might have been. Someone must have observed that unlike carbon tips, metal points and surfaces would easily melt under the arc, and material would flow opposite the direction of the current. Thus an entire industry and a revolution in material engineering arose.
reply
I'm now curious about what the path from arc lights to arc welding might have been. Someone must have observed that unlike carbon tips, metal points and surfaces would easily melt under the arc, and material would flow opposite the direction of the current. Thus an entire industry and a revolution in material engineering arose.
reply
Xeno
Arc lamps were used by projectionists as recently as the early 80s. I remember our projectionists in Tacoma having to replace the carbons, and I remember the special generators in the basement they needed for the power. This was at the old Tacoma Rialto and Roxy (nowadays Pantages) theatres, which were showing popular movies.
reply
Arc lamps were used by projectionists as recently as the early 80s. I remember our projectionists in Tacoma having to replace the carbons, and I remember the special generators in the basement they needed for the power. This was at the old Tacoma Rialto and Roxy (nowadays Pantages) theatres, which were showing popular movies.
reply
Definitive1
You're brilliant and your videos are very informative. I stumbled upon your Ben Franklin/Kite vid yesterday and
I've now watched from #1 up to this point, and I'm still going. I appreciate all your knowledge and the delightful way you teach. I love when you say Ready? Let's go! :-) Thanks a million!
reply
You're brilliant and your videos are very informative. I stumbled upon your Ben Franklin/Kite vid yesterday and
I've now watched from #1 up to this point, and I'm still going. I appreciate all your knowledge and the delightful way you teach. I love when you say Ready? Let's go! :-) Thanks a million!
reply
realvanman1
I believe that arc lamps were in general use far beyond 1900 as the concentrated tungsten filament didnt debut until 1913, I believe. Im pretty sure they were used in searchlights through WWII and beyond. In some cases WELL beyond, seeing new, second lives for advertising purposes.
reply
I believe that arc lamps were in general use far beyond 1900 as the concentrated tungsten filament didnt debut until 1913, I believe. Im pretty sure they were used in searchlights through WWII and beyond. In some cases WELL beyond, seeing new, second lives for advertising purposes.
reply
Rabblewitz
My daughters boyfriend works on powerlines an the like, and was telling me that one of the local towns in the area still uses arc lamps for their street lights. Apparently, it's pretty difficult to get replacement parts when needed, and things often need to be custom made.
reply
My daughters boyfriend works on powerlines an the like, and was telling me that one of the local towns in the area still uses arc lamps for their street lights. Apparently, it's pretty difficult to get replacement parts when needed, and things often need to be custom made.
reply
Larry
did you already listen to the podcast on jane marcet? ( THE CITIZEN SCIENTIST, Jane Marcet: What'sHerName Podcast Episode 68
, Oct 26, 2020
, WhatsHerName Podcast ) i hope you could be guest on their podcast
reply
did you already listen to the podcast on jane marcet? ( THE CITIZEN SCIENTIST, Jane Marcet: What'sHerName Podcast Episode 68
, Oct 26, 2020
, WhatsHerName Podcast ) i hope you could be guest on their podcast
reply
Nicolas
Kathy Loves Physics and History, but I LOVE KATHY! Please forgive my impertinence. I'm a 73 year-old retiree who has just been bitten by the Love Bug, and I'm singing Love Potion Number 9.
reply
Kathy Loves Physics and History, but I LOVE KATHY! Please forgive my impertinence. I'm a 73 year-old retiree who has just been bitten by the Love Bug, and I'm singing Love Potion Number 9.
reply
education
Im taking Chemistry B and watching your videos after lessons is extremely helpful and insightful. I hope you do well in your passions, as you have encouraged me to do well in mine.
reply
Im taking Chemistry B and watching your videos after lessons is extremely helpful and insightful. I hope you do well in your passions, as you have encouraged me to do well in mine.
reply
Andrew
But somehow Edison created the light bulb more than 60 years later? Lmao I knew he stole his workers inventions, but obviously he stole his parents generations inventions as well haha
reply
But somehow Edison created the light bulb more than 60 years later? Lmao I knew he stole his workers inventions, but obviously he stole his parents generations inventions as well haha
reply
Julian
Hey Kathy i love u, ur videos are super fun and educative. I think i'm five or six videos away from watching all of your videos. Loved the AC-DC videos, and the radio ones. Keep up.
reply
Hey Kathy i love u, ur videos are super fun and educative. I think i'm five or six videos away from watching all of your videos. Loved the AC-DC videos, and the radio ones. Keep up.
reply
Sagar
Jay Bajrangbali ki Jay Jay Bajrangbali Bhakti aur Tumhara video Dekhte Hue Pagal Ho Jaenge Bajrangbali tere ko theek karo Kaisa bhi like karo share karo Ram Shukla se understand
reply
Jay Bajrangbali ki Jay Jay Bajrangbali Bhakti aur Tumhara video Dekhte Hue Pagal Ho Jaenge Bajrangbali tere ko theek karo Kaisa bhi like karo share karo Ram Shukla se understand
reply
Ace
I can't think about Humphrey Davy without remembering the clerihew about him:
Sir Humphry Davy
Detested gravy.
He lived in the odium
Of having discovered sodium
reply
I can't think about Humphrey Davy without remembering the clerihew about him:
Sir Humphry Davy
Detested gravy.
He lived in the odium
Of having discovered sodium
reply
John
Thank you for making this great video, as a direct descendent of Sir Humphry Davys brother, I love watching videos about our most impressive family history. Great job!
reply
Thank you for making this great video, as a direct descendent of Sir Humphry Davys brother, I love watching videos about our most impressive family history. Great job!
reply
Sagar
Yah aapka Suraksha handwriting dikh raha hai aur Main To likh likhna start bhi kar diya hun ko comment box Mein bataiye aur like Karunga FIR karunga
reply
Yah aapka Suraksha handwriting dikh raha hai aur Main To likh likhna start bhi kar diya hun ko comment box Mein bataiye aur like Karunga FIR karunga
reply
Buzzy
Was this the same Humphry Davy's who invented the miners' safety lamp that saved countless lives in coal mines? Why no mention of it?
reply
Was this the same Humphry Davy's who invented the miners' safety lamp that saved countless lives in coal mines? Why no mention of it?
reply
Muhammad
Thank you, your episodes are of much value. It's very important to know about the history besides the technical
reply
Thank you, your episodes are of much value. It's very important to know about the history besides the technical
reply
Justin
OMG you cut your hair off! I'm sure it's not as hot, and easier to take care of, but. YOU CUT YOUR HAIR OFF! .
reply
OMG you cut your hair off! I'm sure it's not as hot, and easier to take care of, but. YOU CUT YOUR HAIR OFF! .
reply
Add a review, comment
Other channel videos
