Physics Today
@physicstoday.bsky.social
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The world's most popular physics magazine. physicstoday.org
reposted by
Physics Today
Trevor Owens
about 1 hour ago
Great
@physicstoday.bsky.social
article covering how professional societies are supporting scientists to lobby effectively in response to the attacks on science ->
pubs.aip.org/physicstoday...
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Advocating for science gains urgency
In response to the US governmentâs attacks on science, professional societies intensify efforts to prep scientists to lobby effectively.
https://pubs.aip.org/physicstoday/online/44744
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As the US government continues to undermine research, societies like APS are helping scientists write letters and op-eds and organize visits to lawmakers. As Toni Feder writes, the aim is to garner support for continued science funding.
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Advocating for science gains urgency
In response to the US governmentâs attacks on science, professional societies intensify efforts to prep scientists to lobby effectively.
https://pubs.aip.org/physicstoday/online/44744/
3 days ago
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We are sad to hear that George Smoot passed away. Smoot, an experimental astrophysicist, shared the 2006 Nobel Prize in Physics with John Mather for his work on the COBE satellite, which demonstrated that the cosmic microwave background has a near-perfect blackbody spectrum.
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Mather and smoot share Nobel physics prize for measuring the cosmic microwave background
In the early 1990s, NASAâs Cosmic Background Explorer first revealed the microwave backgroundâs spectral perfectionâand spatial imperfectionârequired by Big Ban
https://pubs.aip.org/physicstoday/article/59/12/18/386995/
3 days ago
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âIt is up to each of us to make the case, in language that resonates beyond academia, that science is not a luxury but a necessity,â says American Physical Society president John Doyle. âNow, as we face new challenges, advocacy must become a part of what we all do.â
#physics
#standupforscience
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What does it mean to be a physicist right now?
The scientific enterprise is under attack. Being a physicist means speaking out for it.
https://pubs.aip.org/physicstoday/online/44732/
3 days ago
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Silvia Alonso-PĂŠrez presents a look at the physics behind the theremin, the early electronic musical instrument that converts hand gestures into the eerie tones heard in the soundtracks of classic sci-fi films like The Day the Earth Stood Still.
#electronicmusic
#physics
#acoustics
#scifi
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Playing with electromagnetic waves: The science of the theremin
The physics behind the unique instrument lets players turn hand gestures into music.
https://pubs.aip.org/physicstoday/online/44749/
4 days ago
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A tiny molecular motor has been used to intertwine two molecules and form a linkage that couldnât otherwise be made. As Laura Fattaruso writes, the achievement paves the way for the synthesis of molecules that are beyond the reach of conventional chemistry.
#physics
#molecularmachines
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A machine that mechanically interlocks molecules
Researchers have shown how a molecular motor can be used to intertwine two molecules and form a linkage that couldnât be made with conventional synthesis.
https://pubs.aip.org/physicstoday/online/44703
4 days ago
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reposted by
Physics Today
Shanil Virani
6 days ago
âShut up and calculateâ? Not a chance.đđ§Ş President of the
@apsphysics.bsky.social
in
@physicstoday.bsky.social
reminds us that physicists are not just scientists; we are citizens, educators, & truth-tellers. So, no, Laura Ingraham, we also won't just "shut up and dribble." đ
bit.ly/ShutUpandCal...
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What does it mean to be a physicist right now?
The scientific enterprise is under attack. Being a physicist means speaking out for it.
https://bit.ly/ShutUpandCalculate
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A team of Italian physicists won the satirical Ig Nobel Prize in Physics last week for their phase diagram of the notoriously tricky cacio e pepe pasta sauce. The team varied the amount of cornstarch and the cooking temperature to find the âscientifically optimized recipeâ to avoid clumping.
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2025 Ig Physics Nobel Prize goes to perfect pasta sauce
YouTube video by Science X: Phys.org, Medical Xpress, Tech Xplore
https://www.youtube.com/shorts/b0cbuaGFAx0
6 days ago
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Grant cancellations by NSF this year are being tracked in a database called Grant Witness. The volunteer-run site has been used in litigation and science advocacy efforts and regularly updates grant statuses as court cases and appeals are announced.
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A crowdsourced database tracks US science grant cancellations
Increasing transparency and informing advocacy and litigation efforts are the main goals of the online resource, which monitors the status of funds awarded by NSF and NIH.
https://pubs.aip.org/physicstoday/online/44687
7 days ago
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The Eisenhower administration dismissed the director of the National Bureau of Standards (the predecessor of NIST) in 1953. As Joseph D. Martin writes, scientists suspected political interference with the agencyâs research, fought back, and won.
#histSTM
#longread
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Political currents
The Eisenhower administration dismissed the director of the National Bureau of Standards in 1953. Suspecting political interference with the agencyâs research, scientists fought backâand won.
https://pubs.aip.org/physicstoday/online/44666/Political-currents
17 days ago
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Scientists reviewed measurements from monitoring stations and instruments from around the world to document the global climate system in their 2024 annual report.
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Major climate change indicators broke records in 2024
A report authored by hundreds of climate scientists worldwide documents surface temperatures, humidity, glacier mass, and more.
https://pubs.aip.org/physicstoday/online/44711
18 days ago
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Despite working in a time of tense diplomatic relations, proxy wars, and budget cuts, many US and Soviet scientists collaborated productively during the 1970s and 1980s, writes Anna Doel. Prior exchanges help better understand the challenges to scientific cooperation today.
https://bit.ly/4neNFWQ
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The successes and challenges of USâSoviet scientific communication
Research exchanges between US and Soviet scientists during the second half of the 20th century may be instructive for navigating todayâs debates on scientific collaboration.
https://pubs.aip.org/physicstoday/online/44609/
26 days ago
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A team at Brown University uncovered the physics behind the vaunted nick shotâan unbeatable hit in four-walled racket sports like squash.
#everydayphysics
https://pubs.aip.org/physicstoday/online/44637/
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The ingredients for an unbeatable squash shot
In four-walled racket sports such as squash, one type of shot reigns supreme: the nick. It occurs when a player hits the 4-centimeter ball to the right-angled spot where the wall of the court meets th...
https://pubs.aip.org/physicstoday/online/44637/
27 days ago
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A lucky strike might be fun, but achieving high bowling scores requires consistently knocking down all 10 pins. Here's the physics behind throwing a perfect strike.
https://pubs.aip.org/physicstoday/online/44608
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The perfect strike in tenpin bowling
How hitting just 4 pins can result in knocking down all 10, over and over.
https://pubs.aip.org/physicstoday/online/44608
about 1 month ago
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We're sad to hear of the death of Rainer Weiss, who shared the 2017 Nobel Prize in Physics with Barry Barish and Kip Thorne for his contributions to the gravitational-wave detector LIGO. In 1999, he and Barish outlined the physics behind LIGO for Physics Today.
https://bit.ly/3UPb84O
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LIGO and the Detection of Gravitational Waves
Large detectors on opposite sides of the country are about to start monitoring the cosmos for the gravitational waves that general relativity tells us should be
https://bit.ly/3UPb84O
about 1 month ago
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From our archives: âThe future of the
#Higgs
bosonâ by Joseph Lykken and Maria Spiropulu from December 2013
doi.org/10.1063/PT.3...
#FromTheVault
#PTarchive
about 1 month ago
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International collaboration is the goal of the newly launched TexasâFrance space hub in Houston. Rice University is facilitating the exchange of new ideas for some of spaceâs biggest challenges. The 6-month program introduces French firms to the US commercial space ecosystem.
doi.org/10.1063/pt.o...
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French space companies come to Texas for a startup accelerator program
Seeking to attract new ideas, the Rice University initiative introduces French space startups to the US commercial space market.
https://doi.org/10.1063/pt.osbo.dpcn
about 1 month ago
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reposted by
Physics Today
ignaasjimidar
about 1 month ago
This month's cover article in
@physicstoday.bsky.social
@aip-publishing.bsky.social
is on "The Enduring Puzzle of Static Electricity". To learn more about using electrostatic forces to design granular materials, turn to the article that I wrote together with Joshua MĂŠndez Harper:
lnkd.in/e_fxkrzt
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From our archives: âAnalysis of musicalâinstrument tonesâ by JeanâClaude Risset and Max V. Mathews from February 1969 "With computers we can not only analyse the sound of a musical instrument but also build up a synthesized copy of the sound."
doi.org/10.1063/1.30...
#FromTheVault
#PTarchive
about 1 month ago
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From the archive: âMass extinctions caused by large bolide impacts,â Luis Alvarez, July 1987 "Evidence indicates that the collision of Earth and a large piece of Solar System debris such as a meteoroid, asteroid or comet caused the great extinctions of 65 million years ago"
doi.org/10.1063/1.88...
about 2 months ago
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From our archives: âFlavor SU(3) Symmetries in Particle Physicsâ by Howard Georgi in April 1988 "Anyone who understands quantum mechanical harmonic oscillators can understand the role and significance of the flavor symmetries of the standard model."
doi.org/10.1063/1.88...
#FromTheVault
about 2 months ago
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We're sad to hear about the passing of Mary K. Gaillard. We were lucky enough to feature a Q&A with her in 2016, in the wake of the publication of her memoir, "A Singularly Unfeminine Profession: One Womanâs Journey in Physics"
doi.org/10.1063/PT.5...
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Questions and answers with Mary K. Gaillard
The trailblazing female physicist recounts scientific accomplishments and painful memories of discrimination in telling her story, which she says has a happy ending.
https://doi.org/10.1063/PT.5.3033
about 2 months ago
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reposted by
Physics Today
Opal
2 months ago
With Tom Lehrer's passing, I suppose this is a moment to share the story of the prank he played on the National Security Agency, and how it went undiscovered for nearly 60 years.
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reposted by
Physics Today
Ryan Dahn
2 months ago
incredibly sad to hear that Tom Lehrer died yesterday. my illustrious predecessor
@mbaldwin.bsky.social
scored a rare interview with him in 2018 for
@physicstoday.bsky.social
on the "Physical Revue," a parody of the physical sciences he premiered at Harvard in 1951.
pubs.aip.org/physicstoday...
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Tom Lehrerâs memorable 'Revue' session
In 1951, the Harvard graduate student and future famed satirist skewered the physical sciences via song in a musical.
https://pubs.aip.org/physicstoday/online/31372/Tom-Lehrer-s-memorable-Revue-session
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From our archives: âThe future of physicsâ by Freeman Dyson from September 1970 "Many physicists may turn to molecular biophysics, pulsar astronomy and the problems of environmental pollution, just as some turned to radioastronomy and computer technology 25 years ago."
doi.org/10.1063/1.30...
2 months ago
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reposted by
Physics Today
Melinda Baldwin
2 months ago
A highlight of my
@physicstoday.bsky.social
tenure for sure!! I'm not sure I've ever been more excited to receive an email address!
add a skeleton here at some point
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From our archives: âColor Perceptionâ by Alan R. Robertson from December 1992 The physical stimulus that causes a color perception can be measured by straightforward physical methods, but predicting the perceived color is much more complex.
doi.org/10.1063/1.88...
#FromTheVault
#ptarchive
2 months ago
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The elusive nature of earthquakes makes forecasting notoriously difficult. Researchers are increasingly turning to AI to help tackle the challenge.
doi.org/10.1063/pt.t...
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The pursuit of reliable earthquake forecasting
The elusive nature of earthquakes makes forecasting notoriously difficult. Researchers are increasingly turning to AI to help tackle the challenge.
https://doi.org/10.1063/pt.tdwq.nppx
2 months ago
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From 1939 to 1948, Dorothy Weeksâthe first woman to receive a PhD in mathematics from MITâled a physics summer internship program that was specifically targeted for women.
doi.org/10.1063/pt.v...
3 months ago
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From our archives: âChandrasekharâs role in 20th-century scienceâ by Freeman Dyson Once the astrophysics community had come to grips with a calculation performed by a 19-year-old student, the heavens could never again be seen as a perfect and tranquil dominion.
doi.org/10.1063/1.35...
3 months ago
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reposted by
Physics Today
Will Thomas
3 months ago
Sixty years ago today, the American Institute of Physics established a "Center for History and Philosophy of Physics," building on four years of pilot efforts. Charles Weiner was director and Joan Warnow led the Niels Bohr Library & Archives. Their work set a model for many efforts to come.
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From our archives: âHistory of the cyclotronâ by M. Stanley Livingston, October 1959 In memory of E. O. Lawrence, two lectures on the history of the cyclotron were presented at the
@apsphysics.bsky.social
1959 spring meeting. This article is based on Dr Livingston's talk.
doi.org/10.1063/1.30...
3 months ago
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âMost people think of Sally as the astronaut: the first American woman to go to space. She was so much more than that.â
#PrideMonth
doi.org/10.1063/pt.w...
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Q&A: Tam OâShaughnessy honors Sally Rideâs courage and character
In a new documentary, Rideâs life partner of 27Â years chronicles the astronautâs leadership, resilience, and dedication to science.
https://doi.org/10.1063/pt.wsyk.lqbw
3 months ago
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From our archives: âWhiskey webs: Fingerprints of evaporated bourbonâ by Stuart J. Williams. February 2021 When a water-diluted droplet of American whiskey evaporates, it can leave behind a self-assembled web pattern not found in Scotch or brandy.
doi.org/10.1063/PT.3...
#FromTheVault
#PTarchive
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Whiskey webs: Fingerprints of evaporated bourbon
When a water-diluted droplet of American whiskey evaporates, it can leave behind a self-assembled web pattern not found in Scotch or brandy.
https://doi.org/10.1063/PT.3.4686
3 months ago
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The life story of astronaut Sally Ride is featured in the new National Geographic documentary SALLY, released on streaming services today.
#PrideMonth
doi.org/10.1063/pt.w...
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Q&A: Tam OâShaughnessy honors Sally Rideâs courage and character
In a new documentary, Rideâs life partner of 27Â years chronicles the astronautâs leadership, resilience, and dedication to science.
https://doi.org/10.1063/pt.wsyk.lqbw
3 months ago
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âPhysics looks at waste managementâ by David Rose, John Gibbons, & William Fulkerson. Feb 1972 What are the best ways to find out what's in our waste, sort & separate it, return to service anything that can be used again & properly dispose of the remainder?
doi.org/10.1063/1.30...
#FromTheVault
4 months ago
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Whatâs on the 40-year wish list for US particle physics? A muon collider at Fermilab, a Higgs factory at CERN, and strong US investment in dark-matter research and cosmic surveys, says a new âŞ@nationalacademies.org report out yesterday.
nap.nationalacademies.org/catalog/2883...
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Elementary Particle Physics: The Higgs and Beyond
Read online, download a free PDF, or order a copy in print.
https://nap.nationalacademies.org/catalog/28839/elementary-particle-physics-the-higgs-and-beyond
4 months ago
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The success of the D-Day invasion
#OTD
in 1944 hinged on the Alliesâ ability to predict the tides. To perform tidal calculations, the Allies used large mechanical computers that were originally designed by Lord Kelvin.
doi.org/10.1063/PT.3...
Photo credit: H. R. Seiwell, Mil. Eng. 39, 202 (1947)
4 months ago
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From our archives: âThe tide predictions for D-Dayâ by Bruce Parker from September 2011 Based on the physics of Newton and Laplace, the big brass tide-predicting machine designed by Lord Kelvin was crucial for the success of the Normandy invasion in World War II.
doi.org/10.1063/PT.3...
4 months ago
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Astronomer and gay rights leader Frank Kameny was born 100 years ago today. His fight for justice helped foster change in and beyond STEM.
doi.org/10.1063/pt.s...
#HistSci
#Physics
#Astronomy
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Frank Kameny the astronomer
The famed gay rights leader and accomplished scientist was one of thousands of US government employees who lost their livelihoods during the Lavender Scare.
https://doi.org/10.1063/pt.skce.rywj
4 months ago
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Hidden behind a fog of galactic gas, Sagittarius A* proved a tricky imaging target for the
@ehtelescope.bsky.social
team.
doi.org/10.1063/PT.6...
#BlackHoleWeek
#Astronomy
5 months ago
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Roger Penrose proved that black holes could and should form in the universe. The topological picture he used in that proof has become foundational to general relativity.
doi.org/10.1063/PT.3...
#BlackHoleWeek
#Astronomy
#Physics
#NobelPrize
5 months ago
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@drbecky.bsky.social
aims to shrink the gender imbalance in the viewership of her astronomy videos.
doi.org/10.1063/pt.w...
#BlackHoleWeek
âď¸đ
5 months ago
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From our archives: âIntroducing the black holeâ by Remo Ruffini and John A. Wheeler According to present cosmology, certain stars end their careers in a total gravitational collapse that transcends the ordinary laws of physics.
doi.org/10.1063/1.30...
#FromTheVault
#PTarchive
#BlackHoleWeek
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5 months ago
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Our May issue is here! Learn about threats to the dark and quiet sky, seismic data that reveal groundwater health, and the future of ocean sciences in the US. Plus, enjoy a poem about physics!
pubs.aip.org/physicstoday...
đ¸: Pexels/Pixabay âď¸đ
#PhysicsToday
#oceanography
#seismology
#poetry
5 months ago
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A new report projects a 13% drop in first-year physics and astronomy graduate enrollment in the US in fall 2025 compared with fall 2024 because of federal funding policy changes. That would be a sharper decrease than any in the past decade.
doi.org/10.1063/pt.k...
#Physics
#Astronomy
#EduSky
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Physics, astronomy graduate admissions in the US expected to shrink amid funding uncertainty
The predicted decrease is larger than pandemic-era disruptions, according to a survey of university departments.
https://doi.org/10.1063/pt.kqzl.oatz
5 months ago
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You can read the article in our April issue or online here:
doi.org/10.1063/pt.i...
âď¸
add a skeleton here at some point
5 months ago
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From our archives: âWhat is the Lithosphere?â by John C. Maxwell from September, 1985
doi.org/10.1063/1.88...
#FromTheVault
#PTarchive
#EarthScience
5 months ago
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A science communicator launched an effort to pair artists with scientists whose jobs were eliminated or whose research funding was halted by the Trump administration. The result? Powerful portraits of researchers and their work. âď¸đ§Ş
doi.org/10.1063/pt.f...
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Portraits of dismissed scientists personalize US government cuts to science
A hurricane researcher. An invasive-insect entomologist. An e-cigarette toxicologist. A biomedical librarian. Those are some of the people included in Silenced Science Stories, a visual storytelling p...
https://doi.org/10.1063/pt.faiz.wdwn
5 months ago
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Celebrate the 35th anniversary of Hubble's launch with a data visualization that charts the positions in the sky of the Hubble Space Telescopeâs plethora of cosmic targets. đâď¸
#Hubble35
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5 months ago
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