gelson b de souza @gelsonbs

physics, materials science (and some silly photographs) Ponta Grossa, Brazil Joined April 2010

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Gabriel Peyré @gabrielpeyre

3 years ago

Taylor series expansion of sine. en.wikipedia.org/wiki/Taylor_se…

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HOUSE PORN @HOUSEPORN___

3 years ago

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Andrew Akbashev @Andrew_Akbashev

4 years ago

No reward - no duties. 75% of respondents have reduced the hours spent on academic duties since 2020 (Nature polls). Mostly due to burnout and unwillingness to work for free. This included attending conferences, peer reviewing manuscripts and grant proposals, committees, mentoring and even teaching. Why? Because scientists are tired of not being able to do #science. - Students are tired of being unappreciated and overloaded - Faculties are tired of “community duties” that become overwhelming (conferences, committees, reviewing, outreach, etc) And everyone is tired of small salaries, zero empathy and little credit. The problem is greatly summarized by Isabel Müller (in the article): “There’s so little acknowledgement that people have difficult, complicated lives outside of work.” A year ago, Nature described how PhD students don’t want to be postdocs and faculties are leaving academia. Now, we see that those who stayed are trying to resist the system from the inside. But the problem is - the system is too rigid, too traditional and too elitist. So, as a community, we can change it only by raising our voices and expressing distaste with the status quo. I applaud Nature for writing about these issues so regularly. The academic world has too many interdependent parts which should be addressed concurrently. This is why we should stay united and strong as a community. Regarding the academic environment we all hope to have, I loved how Isabel Müller put it in the article: - I hope it becomes the new normal to say: “My life matters. My work is an important part, but I decide what my life looks like, not my employer”. #AcademicTwitter #education

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Martin Bauer @martinmbauer

4 years ago

Gail Alfar @gailalfaratx

4 years ago

How can happiness be maximized among all humans?

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Reuters @Reuters

4 years ago

The discovery of rocks made from plastic in Brazil's volcanic Trindade Island is sparking alarm. 'This is new and terrifying at the same time,' said Fernanda Avelar Santos, a geologist at the Federal University of Parana reut.rs/429PHxP 1/5

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Massimo @Rainmaker1973

4 years ago

A black panther is the melanistic colour variant of any Panthera, particularly of the leopard. Photographer Mithun Hunugund captured the perfect moment a female leopard is shadowed by her black panther partner [📷ow.ly/GQOG50BIQOZ] [read more: ow.ly/cSeX50BIQP3]

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Fermat's Library @fermatslibrary

4 years ago

How do Maxwell's equations predict that the speed of light is constant

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Brent Toderian @BrentToderian

4 years ago

If walking costs you $1, we all pay $0.01. If biking costs you $1, we all pay $0.08. If bussing costs you $1, we all pay $1.50. If driving costs you $1, we all pay $9.20. Via @thediscourse study. This isn’t just about choice. It’s about who pays for your choice. #citymakingmath

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Itai Yanai @ItaiYanai

4 years ago

New Nature paper provides evidence that science has become less innovative since the 1950s. The authors suggest reversing the trend by: 1. reading widely, 2. focusing less on quantity of papers, & more on research quality, 3. taking year-long sabbaticals. nature.com/articles/s4158…

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Urban Cycling Institute 🚲  @fietsprofessor

4 years ago

'Just as the computer, the bicycle is a tool that amplifies our inherent abilities to spectacular magnitudes' — Steve Jobs (@scientificamer measured the efficiency of locomotion for various species on the planet. Humans on bikes blew all away!)

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Cohérence @coherence_e

4 years ago

« Soyez comme l'arbre, changez vos feuilles, mais jamais vos racines. Vous pouvez changer vos opinions, mais jamais vos principes. » Victor Hugo

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Black Hole @konstructivizm

4 years ago

Meteor breaking into the earth's atmosphere Source:old.reddit.com/r/interestinga…

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Tasso Azevedo @tassoazevedo

4 years ago

Pra abrir os trabalhos em 2023: Numa tacada só, retoma o FNMA, Fundo Amazônia, PPCdam e PPCerrado, revoga decreto que liberava geral o garimpo, reorganiza o processo de multas e sanções ambientais destruído pelo "passa boiada", e retoma o CONAMA participativo - segue o fio

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Oded Rechavi @OdedRechavi

4 years ago

When you read the sentence "accepted with minor revisions"

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Sheet Music Library @LibrarySheet

4 years ago

O, What a night - November 14 1952

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GiGadgets @gigadgets_

4 years ago

These CNC machine products are impressive. The products of Beijing Jingdiao Group are so precisely engineered that you can’t find a fitting gap. #gigadgets #industrial #cnc #oddlysatisfying #mechanic

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Black Hole @konstructivizm

4 years ago

Series of images on the surface of a Comet 67P/Churyumov–Gerasimenko, taken by the ESA lander Philae deployed by Rosetta space probe.

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Massimo @Rainmaker1973

4 years ago

Echo is a reflection of sound that arrives at the listener with a delay after the direct sound. Musician and sculptor Armin Küpper found how to take advantage of it playing his saxophone into a huge gas pipe [📹: buff.ly/37tqwtT]