Steve Cohen
@drstevecohen.bsky.social
Chemical history🧪 (podcast “The History of Chemistry”; book “O Mg! How Chemistry Came to Be”)/Author/Jewish music/Yiddish (raised 2 Yiddish-speaking children)/Calligraphy/Genealogy/Etc. Attempts to argue that science isn’t real get you blocked.
Found this quote last
Night in Jack McDevitt’s sci-fi novel “Infinity Beach” (1997). Posting it for, um, no reason.
Night in Jack McDevitt’s sci-fi novel “Infinity Beach” (1997). Posting it for, um, no reason.
November 6, 2025 at 6:16 PM
Found this quote last
Night in Jack McDevitt’s sci-fi novel “Infinity Beach” (1997). Posting it for, um, no reason.
Night in Jack McDevitt’s sci-fi novel “Infinity Beach” (1997). Posting it for, um, no reason.
My latest calligraphic work, the Birkat HaZan: gouache on watercolor paper, scheduled for installation in my dining room. #art #calligraphy #Jewish
September 26, 2025 at 8:33 PM
My latest calligraphic work, the Birkat HaZan: gouache on watercolor paper, scheduled for installation in my dining room. #art #calligraphy #Jewish
Folx, I have posted the final episode of my podcast, “The History of Chemistry.” Please continue to support it financially on Buzzsprout & Patreon, otherwise it goes away. (Hosting costs money.) 🧪 #ChemSky
September 9, 2025 at 8:46 PM
Folx, I have posted the final episode of my podcast, “The History of Chemistry.” Please continue to support it financially on Buzzsprout & Patreon, otherwise it goes away. (Hosting costs money.) 🧪 #ChemSky
Last night was my choir, Sharim v’Sharot’s first rehearsal of the season.
September 3, 2025 at 7:39 PM
Last night was my choir, Sharim v’Sharot’s first rehearsal of the season.
Newest episode of "The History of Chemistry" podcast: Finding life chemically in our solar system. 🧪
August 22, 2025 at 3:24 PM
Newest episode of "The History of Chemistry" podcast: Finding life chemically in our solar system. 🧪
Latest episode of "The History of Chemistry" podcast for all is on the recent history of molecular machines. Hear about the ancestors of our future molecular overlords! 🧪
August 17, 2025 at 3:22 PM
Latest episode of "The History of Chemistry" podcast for all is on the recent history of molecular machines. Hear about the ancestors of our future molecular overlords! 🧪
The latest episode of "The History of Chemistry" podcast discusses how phytofarming has developed. 🧪
August 8, 2025 at 8:19 PM
The latest episode of "The History of Chemistry" podcast discusses how phytofarming has developed. 🧪
Newest post on "The History of Chemistry" podcast is an episode about the history of chemistry 🧪 itself.
August 3, 2025 at 6:12 PM
Newest post on "The History of Chemistry" podcast is an episode about the history of chemistry 🧪 itself.
Next episode of "The History of Chemistry" is up: listen to a bit about various awards and honors that chemical organizations bestow.🧪
July 25, 2025 at 9:52 PM
Next episode of "The History of Chemistry" is up: listen to a bit about various awards and honors that chemical organizations bestow.🧪
New episode of my podcast "The History of Chemistry" is up, on Greek letters used as symbols in chemistry. 🧪
July 17, 2025 at 7:45 PM
New episode of my podcast "The History of Chemistry" is up, on Greek letters used as symbols in chemistry. 🧪
A couple of weeks ago I was in Stockholm, and I *had* to visit the statue of chemist 🧪 Jöns Jacob Berzelius, who discovered elements, invented modern chemical symbols, and more. Sadly, there is no museum dedicated to him in Stockholm—and there ought to be.
July 14, 2025 at 12:08 AM
A couple of weeks ago I was in Stockholm, and I *had* to visit the statue of chemist 🧪 Jöns Jacob Berzelius, who discovered elements, invented modern chemical symbols, and more. Sadly, there is no museum dedicated to him in Stockholm—and there ought to be.
New episode up for "The History of Chemistry" podcast: on photovoltaic cells that operate under indoor illumination. 🧪
July 11, 2025 at 7:47 PM
New episode up for "The History of Chemistry" podcast: on photovoltaic cells that operate under indoor illumination. 🧪
From my collection of historical chemistry 🧪 books, here is A Y Rogodin’s “Khemye,” published with other Yiddish scientific works by Farlag Yehude in Warsaw ~1920. Rogodin was an engineer, not chemist. #Yiddish
July 2, 2025 at 11:39 AM
From my collection of historical chemistry 🧪 books, here is A Y Rogodin’s “Khemye,” published with other Yiddish scientific works by Farlag Yehude in Warsaw ~1920. Rogodin was an engineer, not chemist. #Yiddish
From my historical chemistry🧪 books, here is my copy of Englishman Dr Joseph Mellor’s p-chem book, which he apparently liked most of all the books he wrote. Note the quote on the title page! (See p. 13 of the link for a full bio of Mellor.: acshist.scs.illinois.edu/bulletin_ope...)
June 29, 2025 at 6:08 PM
From my historical chemistry🧪 books, here is my copy of Englishman Dr Joseph Mellor’s p-chem book, which he apparently liked most of all the books he wrote. Note the quote on the title page! (See p. 13 of the link for a full bio of Mellor.: acshist.scs.illinois.edu/bulletin_ope...)
Newest episode of "The History of Chemistry" podcast is up! Fun and games are integral to chemistry.🧪
I hope for a good reaction.
I hope for a good reaction.
June 26, 2025 at 3:11 AM
Newest episode of "The History of Chemistry" podcast is up! Fun and games are integral to chemistry.🧪
I hope for a good reaction.
I hope for a good reaction.
Latest episode of "The History of Chemistry" podcast is now up, on how chemists viewed water throughout history. Check it out! 🧪
June 20, 2025 at 1:14 AM
Latest episode of "The History of Chemistry" podcast is now up, on how chemists viewed water throughout history. Check it out! 🧪
No Faux King Way”, and a cast of a couple thousand in Lancaster, Pennsylvania. I hope you did your civic duty too.
June 15, 2025 at 2:45 AM
No Faux King Way”, and a cast of a couple thousand in Lancaster, Pennsylvania. I hope you did your civic duty too.
Latest episode of "The History of Chemistry" 🧪 podcast now available for all is "Midnight Blue," about George Washington Carver's patented blue, and a 21st-century blue pigment. Try out the podcast!
June 12, 2025 at 9:35 PM
Latest episode of "The History of Chemistry" 🧪 podcast now available for all is "Midnight Blue," about George Washington Carver's patented blue, and a 21st-century blue pigment. Try out the podcast!
Latest episode now live for "The History of Chemistry" podcast is how a samarium isotope's half-life is poorly known, even to the point of retracting a paper, which affects other branches of science. 🧪
June 6, 2025 at 3:10 AM
Latest episode now live for "The History of Chemistry" podcast is how a samarium isotope's half-life is poorly known, even to the point of retracting a paper, which affects other branches of science. 🧪
Continuing the series of historic chemistry🧪 books in my collection, here is a “Laboratory Manual of Organic Chemistry” 2nd ed., by Dr Harry Fisher, an expert in rubber chemistry, published just when polymers were found to be chains of smaller molecules. www.nytimes.com/1961/03/21/a...
June 4, 2025 at 2:45 AM
Continuing the series of historic chemistry🧪 books in my collection, here is a “Laboratory Manual of Organic Chemistry” 2nd ed., by Dr Harry Fisher, an expert in rubber chemistry, published just when polymers were found to be chains of smaller molecules. www.nytimes.com/1961/03/21/a...
My latest podcast episode, on the chemical 🧪 history of wetting and superhydrophobicity (say that five times fast), is now up and running. Listen now!
May 30, 2025 at 12:21 AM
My latest podcast episode, on the chemical 🧪 history of wetting and superhydrophobicity (say that five times fast), is now up and running. Listen now!
From my modest collection of historical chemistry🧪 books, a text written by Professor Alexander Smith. Apparently he was highly regarded as an educator (per a column in the Journal of Chemical Education, 1931). pubs.acs.org/doi/pdf/10.1...
May 25, 2025 at 1:51 PM
From my modest collection of historical chemistry🧪 books, a text written by Professor Alexander Smith. Apparently he was highly regarded as an educator (per a column in the Journal of Chemical Education, 1931). pubs.acs.org/doi/pdf/10.1...
After a hiatus due to a death in the family, I am back with a new episode of “The History of Chemistry” podcast, this time on how fractals apply to chemistry.🧪
May 23, 2025 at 12:59 AM
After a hiatus due to a death in the family, I am back with a new episode of “The History of Chemistry” podcast, this time on how fractals apply to chemistry.🧪
Another work in my historical chemistry🧪 collection is a gas-analysis book by Dr Walther Hempel. The English translation received a positive review in “Science” when published in 1892. www.science.org/doi/10.1126/...
May 12, 2025 at 5:55 AM
Another work in my historical chemistry🧪 collection is a gas-analysis book by Dr Walther Hempel. The English translation received a positive review in “Science” when published in 1892. www.science.org/doi/10.1126/...