Discover and read the best of Twitter Threads about #chemistry

Most recents (24)

@CO2Coalition To understand how CO2/temp relate, we need to explore #physics,
& the chem properties of the #carbondioxide molecule.

Learn about CO2’s #DipoleMoment & how change in energy balance affects DENSITY, & behavior.

Shit, I burnt my toast.
#STEMeducation… ImageImageImageImage
@CO2Coalition Dipole moments are the change in energy between atoms.

Think of this energy change as a soccer ball w a force towards a specific direction. This “pulls” naturally on atoms when they join together to make molecules.
Its based on the atoms’ electrons.

@CO2Coalition Electrons ‘spin’ around the nucleus of an atom (similar to planetary orbits)…
The closer the electron to the center, the faster it has to spin. #MolecularOrbitalDiagrams for CO2 show us where electrons spin based on energy available.… ImageImageImageImage
Read 21 tweets
Before there was Lena Horne, there was Savannah’s own Fredi Washington. She was one of the first African-American actresses to gain recognition in films and challenge racism in Hollywood. A proud Black woman, she refused to pass for white. Actors Louise Beavers, left, and Fredi Washington, right, in
Born in 1903, Frederika “Fredi” Washington excelled as a dancer, actress, journalist, and Civil Rights activist. She began her career as a dancer in the 1920s in “Shuffe Along,” the first Broadway show created, produced, and performed by African Americans.
It was a landmark in African-American musical theater, credited with inspiring the Harlem Renaissance of the 1920s and '30s. Washington became lifelong friend with another dancer named Josephine Baker. Playbill for Shuffle Along
Read 14 tweets
@yessmanstu @GeraldKutney @goddeketal Military or no military,
the climate is changing fast
bc of increased carbon dioxide
in the infrared zone
of the atmosphere.

The physical properties
of carbon dioxide
include interacting
w long wave infrared energy
passing through.

FAQs here…
@yessmanstu @GeraldKutney @goddeketal This is a similar explanation to how other molecules (with different properties) absorb different wavelengths of light (energy)
#physics #STEMeducation
Every molecule is different, and it has to do w how many electrons can move and change their orbitals…
@yessmanstu @GeraldKutney @goddeketal Molecular orbital diagrams talk about where electrons likely are in any given combination of elements.…
For CO2 the way the electrons spin depends on how much energy the molecule has, and the levels look like this (MO diagram from…)
Read 13 tweets
1/8 "#Ultraviolet #germicidal #irradiation (#UVGI) is known to #inactivate various #viruses and #bacteria, including #SARSCoV2, and is widely applied especially in #medical facilities."

#COVID19 #CovidIsNotOver #COVIDisAirborne…

An abstract thread 🧵...
2/8 "This #inactivation results from the #high #photon #energies causing #molecular #bonds to break, but when #nonpathogen #molecules are affected, #unwanted #effects may occur."
3/8 "Here, we explored the effect of a commercial high-intensity (∼2 kW) #UVC #disinfection device on the #composition and #concentration of #gases and particles in #indoor #air."
Read 8 tweets
We’re pleased to announce the 2023 NAS Awards recipients! These 16 individuals are honored for their extraordinary scientific achievements in a wide range of fields spanning the physical, biological, and medical sciences. #NASaward #Science #Awards
Join us in congratulating Kirk Bryan Jr. of NOAA Geophysical Fluid Dynamics Laboratory & @Princeton, winner of the 2023 Alexander Agassiz Medal for pioneering and visionary work in oceanography and climate science! Learn about his work:… #Climate
We are honoring David J. McComas of @Princeton with the 2023 Arctowski Medal for his pioneering contributions to experimental space plasma physics! You can read more about his achievements here: #NASaward #Space #Physics
Read 17 tweets
1/ A THREAD on what $PVCT achieved in 2022. #event #discovery #milestone #milepost. #rosebengal #rosebengalsodium.
2/ $PVCT 2023 Stockholder Letter (released January 9th). . #rosebengal #rosebengalsodium.
3/ $PVCT #clinical and #research collaborators made 6 presentations at 5 medical conferences about PV-10 for different cancers. #ENETS22 #AACR22 #ASCO22 #ISOO2022 #melanomabridge. #presentations. #rosebengal #rosebengalsodium.
Read 50 tweets
The Correct answer is (C)
(1/5)Recombinant vector vaccines are made through genetic engineering. The gene that creates the protein for a bacteria or virus is isolated and placed inside another cell’s genes.
(2/5)When that cell reproduces, it produces vaccine proteins that mean the immune system will recognize the protein and protect the body against it. Hence, statement 1 is correct.
Read 6 tweets
The Correct answer is (D)
(1/4)Microbial Fuel Cells (MFCs) are devices that use bacteria as the catalysts to oxidize organic and inorganic matter and generate current.
(2/4)Electrons produced by the bacteria from these substrates are transferred to the anode (negative terminal) and flow to the cathode (positive terminal). Hence, statements 1 and 2 are correct.
Read 5 tweets
Our recent paper "Exposing the Limitations of Molecular Machine Learning with Activity Cliffs" is now online!…

@korney34 @fra_grisoni @molecularML #AI #ML #drugdiscovery #Chemistry

By going to the limits of molecular property prediction ... 👇
with activity cliffs -- molecules that have highly similar structures, but large differences in bioactivity -- we see that deep learning still lacks behind of traditional machine learning for bioactivity prediction.
We showed that evaluating your models performance activity cliffs is crucial for prospective applications, especially in low data scenarios. To do this we developed a cool tool called MoleculeACE…
Read 3 tweets
On Wednesday I tried to define a #metamaterial.

Now it's time to define #metals, which should be way easier, right?

Spoiler: even in a #metallurgy group @LNM_eth, not everyone agrees!

First a list of "high-school science" definitions that don't really help us. The

"Metals are reflective": Yes but not all reflective things are metals. Not definition friendly. Image
"Metals are ductile and malleable, easy to work with": Not necessarily. Good luck working with Tungsten, which is definitely metal.

This article tells a bit about how hard making the Tungsten filaments that we used on lights was!…
Read 16 tweets
Hi #biology #chemistry #naturalproducts #botany #ecology @SEBotany @pharmacognosy educators! If you are looking for some fresh, fun & #free material to supplement college or high school courses—check out some of these resources that I developed & use in my own classes
🧵 Pls RT🙏 Image
The Teach #Ethnobotany YouTube channel holds 300+ videos on everything from ethnobotany, to the science behind medicinal plants, food & health. Check out the playlist featuring original research conference talks from @SEBotany & @SofEthnobiology…

If you're looking for more classic educational lectures (short & long), especially on medical botany, you can check out my playlist of 40+ class lectures. Some of these also include captioning:…

Read 6 tweets
A 🧵on the #Dmitrievsky #Chemical Plant explosion and fire. On @Twitter I mostly post on Data Security (20year as a CxO and #Votehacking. But I also have 9 years as CEO and longer on BODs of #AdvancedMaterials / #NanoMaterials.
The extreme damage, perhaps total destruction of this chemical plant is going to have a spectacular and massive impact on the #RussianArmy. Possibly grinding entire systems to a stop in weeks, perhaps even days.
Like many industrial sectors in #Russia, they tend to be centralized, massive + singular. This is generally a result of historic centralization of production under the Soviet model, and a fear of building massive high-cost infrastructure by nonRU firms #BASF #DuPont etc.
Read 14 tweets
It's good to be back! Follow this thread for the video stream & live coverage of tonight's first SFI Community Lecture at @TheLensic in two years, featuring @Sara_Imari on the #physics of living #systems.
And stay tuned for an extraordinary lineup of additional talks this year...
Live stream starts in one minute!
SFI's @ChrisKempes introduces tonight's speaker @Sara_Imari (@sfiscience, @beyond_asu) by quoting #HaroldMorowitz about how, to find life beyond Earth, we must understand the *origins* of life...
Read 28 tweets
1/? Ryan saga megathread.

Ryan is a supremely wealthy penguin with a bangin sense of style. His adventures are becoming spread out across the cryptoverse and I decided to compile them here for easy access for his fans.

#ryan #penguin #xtz #tezos #adventure #nft
Ryan began with a drawing I made in MerMay, skateboarding Ryan:

Black tie renegade!

#xtz #tezos #hicetnunc #mermay #ryan #penguin Image
I had a lot of fun drawing Ryan, so I thought I'd make a little project on #hicetnunc featuring him. This was the first piece of the project:
Fabulously wealthy as he is, of course he has a gigayacht. Ryan is always trying to make new friends! Image
Read 32 tweets
@uusisuomi Olipa kerran Dr. Xi O'Micron, ei päätä, ei häntää.
- Increases in #COVID19 are UNRELATED to levels of #vaccination across 68 countries and 2947 counties in the #UnitedStates
Eur J Epidemiol. 2021;…
@uusisuomi #Vastuullisuus #kokoomus #vihreät @THLorg @Rauhio
- #Maski, myös #N95 ovat kirurgisia kertakäyttöisiä (max. 15 min) suu- ja nenäsuojuksia, joiden tehtävä on LEIKKAUSSALISSA suojata veri- ja eriteroiskeilta.
- Se ei ole hengityksensuojain.
@uusisuomi @THLorg @Rauhio @Kokoomus @keskusta @Demarit @vasemmisto @vihreat @persut @sfprkp @KDpuolue
- Muunnos -tarinat loppuvat, kun plandemian perusta, vääriä positiivisia tuottavat testit poistetaan käytöstä, #CDC 31.12.2021, nolo totuus paljastuu.
Read 23 tweets
We are stocked to have In2science mentor Annelisa (@RigoniStella) from @RMIT take over our Twitter for #TakeoverThursday!
Annelisa is a PhD candidate in Chemistry, who is going to talk about some of the things they have learnt during their past 8 years of study in STEM at RMIT!
First up – my very first few years at @RMIT! Completing 2 degrees in Applied Science & Nanotechnology, I learnt so much about how the world around us works on the smaller scale – and also how to make cool compounds in the chemistry labs! A variety of purple, yellow, blue and white coloured chemica
During these first four years completing these degreed, I also had the opportunity to tour the Australian Synchrotron @ANSTO, which I learnt is currently used to carry out crucial research in Australia! A several students residing within a room containing several
Read 8 tweets
1/ Mitra Chem has raised a $20 Million Series A. @chamath and Will Drewery (@Astra VP) have joined our Board of Directors. Ever since I started my #battery materials journey at @Tesla, 5 questions plagued me:…
2/ Why couldn't we differentiate #chemistry by the intended use case's unique application requirements?

Why use the same chemistry across sports cars,
mass market cars, and pick-up trucks?
3/ Why does an atom of #lithium effectively travel around the world twice before it makes it into a vehicle?

Why wasn't the battery #supplychain being built right alongside the battery factory itself?

What more can we do with iron-based cathode chemistries?
Read 10 tweets
Many thanks to the awesome ladies at @IWS_Network for the chance to share my #immigrant #womanofcolour #womaninscience👩🏽‍🔬story throughout this week as part of their Voices Without Frontiers program!…
#IWSvoices #WomenInSTEM
I was born in #Guyana 🇬🇾
➡️ Amerindian name meaning “Land of Many Waters”.
➡️small in size (<800, 000 people), rich in natural resources
➡️only English-speaking country in South America
➡️Diversity of people with amazing cultural mix @IWS_Network #VoicesIWS #WomenInSTEM ImageKaieteur Falls - world's la...Photo Source: Guyana Times
Genetically I’m Indian - ancestors brought to ‘British Guiana’ from India during colonial times to work on #sugarplantations.

Culturally I’m #Caribbean as #Guyana shares historical and cultural ties with other Anglo-Caribbean countries.

@IWS_Network #VoicesIWS #WomenInSTEM East Woman in the Anglo-Car...
Read 20 tweets
The October issue of our Brussels News Updates (BNU) #newsletter is now available! 📨

Click here for the latest news impacting #chemistry in Europe! ➡️…
This month, we share with you the following news:
– news on the EuChemS Historical Landmarks Award 2020 (European Level)
– summary of our webinar “Good Chemistry – Do Chemists Need Ethics?”
– invitation to the 1st Global #Sustainable Chemistry Week
– our analysis of the outcomes of the Council of Ministers Responsible for Competitiveness (Research)
– a look at the European strategy for critical #rawmaterials
– updates on the @OPCW Centre for Chemistry and Technology
Read 5 tweets
Off to @WykeCollege this afternoon to talk about the amazing #chemistry that goes on in Hull, and the opportunities for chemists & chemical engineers in the region 🧵🪡 #Careers Image
@ThisIsReckitt have their R&D headquarters in Hull, they make nurofen, detol, gaviscon and lots more
@CrodaSTEM manufacture lubricants, adhesives, skin care ingredients. You find one of their products in bottle lids, without it you’d struggle to open and close you drink container.…
Read 7 tweets
OK. I'll say it. What are we to conclude from the all male @NobelPrize awards in #STEM these past two weeks?
1st. I'm sure the winners were all deserving. There's nothing to take away from them, and that is not my intention.
2nd. But there are so many deserving #WomenInSTEM, not the least of whom is Katalin Karikó @kkariko.
Imagine your research lays the groundwork for a novel #vaccine that is leading the world out of a once-per-century global pandemic. Surely that is worth at least one if not two @NobelPrize awards?
Read 12 tweets
Now this is gaining traction !!
#HappyHypoxia .. a situation of low oxygen saturation on the blood, which is an early indicator of impending #COVID19 deterioration !! .. 1/n
Harian Metro, 27/5/2021…
An oxygen saturation of below 95% is an indicator of a need to seek further Rx.. if the #COVID19 Px is quarantined at home.. 2/n
Harian Metro, 27/5/2021…
Oxygen saturation levels easily measurable using a #pulseoximeter .. easily available at Pharmacies. In fact, currently it's a standard item for those who are under home quarantine for #COVID19 ..

Below is what United Sikhs Malaysia is doing !! .. 3/n
Read 18 tweets
پاکستان کی لبرل و سیکولر اشرافیہ کو “ #تصوف “ کا بہت شوق ہے مگر انہیں عمران خان صاحب و تحریک انصاف کا تصوف پسند نہیں ہے ۔ دونوں گروہ قدیم اور اصل صوفیاء کے یہ اقوال پڑھیں اور آنکھیں کھول لیں (بحوالہ قول الجمیل از شاہ ولی اللہ ) Image
جس #تصوف #سلوک و #طریقت کو مزاروں ، چلوں اور وظیفوں میں ڈھونڈا جاتا ہے وہ تصوف اور وہ صوفی صرف خدمت خلق میں ہے


طریقت بجز خدمت خلق نیست

بہ تسبیح و سجادہ و دلق نیست

“طریقت، خدمت خلق کے سوا کچھ اور نہیں ہے”

“یہ تسبیح اور سجادہ اور گدڑی سے (میں) نہیں ہے”
تصوف ، سلوک و طریقت یونیورسٹیوں سے نہیں درد دل سے ہے سائنس کو مذہب سے الگ رکھیں دونوں کو برباد کریگی یہ ملاوٹ - تصوف و سلوک و طریقت صرف یہ ہے 👇


درد دل کے واسطے پیدا کیا انسان کو

ورنہ طاعت کے لیے کچھ کم نہ تھے کر و بیاں

#دوستی #محبت #صلہ_رحمی
Read 41 tweets

Related hashtags

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!