Tessera

Apparently it *is* easy being green. #ChemSky #Chemistry 🧪 cen.acs.org/environment/...

Why the Reflecting Pool keeps turning green

Nitrogen, phosphorus, sunlight, and stagnant water can combine to create the perfect conditions for algal blooms

cen.acs.org

Be sure to attend Harmonium Choral Society’s concert in Morristown, NJ tonight. They are performing my choral arrangement of ”Bénissez-Nous.” #choir #JewishMusic www.harmonium.org

Harmonium Choral Society

harmonium.org

Advertise your Bluesky account with a Simpsons GIF:

Professor Frink Explains Math on Blackboard

ALT: Professor Frink Explains Math on Blackboard

static.klipy.com

174 years ago this month, Edward Frankland reported the first organometallic compounds of Sn, Zn, and Hg in The London, Edinburgh, and Dublin Phil. Mag. and J. of Sci. #ChemSky #Chemistry 🧪 Read it here: scispace.com/pdf/on-a-new...

scispace.com

From the ACS Gov’t Affair’s Team: “ACS is actively assessing the [OMB] proposal and its potential impact on our members, the broader scientific community, and ACS operations.” Compare with Stand Up For Science’s response. Which method will work? 🧐 #ChemSky #SUFS 🧪

In May 1909, Søren Sørensen introduced the pH scale in Biochem. Z., 21 (1909), 131. Chemical historians think it may stand for “pouvoir Hydrogène". #ChemSky 🧪 Read it at babel.hathitrust.org/cgi/pt?id=in... and the English translation is at www.chemteam.info/Chem-History...

babel.hathitrust.org

If I were the Editor, I’d have worded this headline differently.

This month in 1913, J.J. Thomson announced analysis of rays with positive/negative charges. He found 22Ne and 20Ne with the first mass-spec method. #ChemSky 🧪 Read his Bakerian lecture here: royalsocietypublishing.org/rspa/article...

Bakerian Lecture:—Rays of positive electricity

Abstract. In 1886, Goldstein observed that when the cathode in a vacuum tube was pierced with holes, the electrical discharge did not stop at the cathode;

royalsocietypublishing.org

Latest drawing challenge with daughter. Theme was fruit. #artchallenges #drawing #drawsomething #pencildrawing

Left is a yellow-green D'Anjou pear on a white Corelle plate. Right is a pencil drawing of the pear on the plate.

Midwest Jewish Studies Association Call for Papers (no, you don't have to be in the Midwestern USA). #JewishStudies #Academic

38th Annual Midwest Jewish Studies Conference, call for papers.

Music for your soul. My arrangement (get it through Transcontinental) of the 200-year-old SW French-Jewish bilingual “Bénissez-Nous” (Bless Us), which uses a medieval Sephardic melody. Thanks to the Santa Fe Desert Chorale. #Choral #JewishMusic www.youtube.com/watch?v=gxEK...

Bénissez-Nous, arr. Stephen Cohen (words by David Lévi Alvarès)

YouTube video by Santa Fe Desert Chorale

youtube.com

Schönbein announced his discovery of ozone this month in 1840 in a letter to Faraday, read to the Royal Society. #Chemistry #ChemSky 🧪 You can read it here: www.jstor.org/stable/11069...

On the Odour Accompanying Electricity, and on the Probability of Its Dependence on the Presence of a New Substrate. [Abstract] on JSTOR

On the Odour Accompanying Electricity, and on the Probability of Its Dependence on the Presence of a New Substrate. [Abstract], Abstracts of the Papers Printed in the Philosophical Transactions of the...

jstor.org

It's now 151 years since Lecoq de Boisbaudran announced the discovery of Ga. Did he name it for France (Gallia = Gaul) or himself (Lecoq = Gallus)? #Chemsky #Chemistry 🧪https://www.tandfonline.com/doi/abs/10.1080/14786447508641312

On the chemical and spectroscopic characters of a new metal (gallium)

Published in The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Series 4 (Vol. 50, No. 332, 1875)

tandfonline.com

Science-writing made simple.

73 years ago this month, Watson & Crick published their short article in "Nature" (with serious controversy later as to how they got their data) deciphering the structure of DNA, beating Linus Pauling. You can read it here. www.mskcc.org/teaser/1953-... #ChemSky 🧪 #Chemistry

mskcc.org

Lavoisier read "Memoir on the Nature of the Principle which Combines with Metals during their Calcination and which Increases their Weight" 251 years ago this month (published 1778), studying "fixed air" (CO2). #ChemSky 🧪 Read it here: web.lemoyne.edu/giunta/lavoi...

Antoine Laurent Lavoisier

web.lemoyne.edu

Latest result of drawing challenge with my daughter. The theme is “wineglass.” #artchallenges #drawing #drawsomething #pencildrawing

Photograph of corresponding wineglass on wooden table

This afternoon I gave a jointly sponsored talk (Royal Soc of Chem; Society Hill Synagogue) in Philadelphia for Yom HaShoah: “Dr Stefanie Horovitz: The Isotope Lady,” who proved in WWI that isotopes are real. I can come to your venue too. Just ask. #ChemSky 🧪 #YomHaShoah

Man lecturing to audience in all-purpose room near large-screen TV

85 years ago this month, Robert Woodward published rules to match structures of certain ketones with their UV absorbance spectra. #ChemSky 🧪 Read the 1st page here: pubs.acs.org/doi/pdf/10.1...

Structure and the Absorption Spectra of α,β-Unsaturated Ketones

pubs.acs.org