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there's nothing that is scientifically proven

(A theoretical physicist explains why) Science Is Not About Certainty [more inside]
posted by flex on Aug 5, 2014 - 33 comments

21st Century Wiener

Norbert Wiener: The Eccentric Genius Whose Time May Have Finally Come (Again) - "The most direct reason for Wiener's fall to relative obscurity was the breakthrough of a young mathematician and engineer named Claude Shannon." [more inside]
posted by kliuless on Jul 11, 2014 - 12 comments

I'm leaving my body to science, not medical but physics

Let's Talk About Science is a blog devoted to discussing the world of science and technology communication with clear, beginner-friendly language, written and compiled by nanoscientist/physicist Jessamyn Fairfield and science educator ErinDubitably. [more inside]
posted by divined by radio on Jul 3, 2014 - 4 comments

Project Mogul

You may have heard how sounds travel farther during a temperature inversion, when air near the ground is cooler than the air above. But do you know how this phenomenon is related to the 1947 UFO crash in Roswell, New Mexico? [more inside]
posted by mbrubeck on Jun 8, 2014 - 14 comments

Einstein reportedly bitter about not getting spooky action at a distance

Researchers at the Kavli Institute of Nanoscience at the Delft University of Technology in the Netherlands have developed a technique for quantum data teleportation that uses deterministic methods to offer one hundred percent accuracy. Previous methods only worked reliably one in every 100 million attempts. [more inside]
posted by saulgoodman on May 30, 2014 - 87 comments

"You can measure your life in a number of drops."

World's longest-running experiment captures elusive tar pitch drop fall on video after 84 years of waiting — though, sadly, too late for physicist and former pitch drop custodian Prof. John Mainstone, who passed away last year.
posted by Blazecock Pileon on Apr 19, 2014 - 15 comments

Pyro Board

Pyro Board. Or flammable sound waves and music. Danish Fysikshow demonstrates a 2-D Rubens' tube (wiki, demo).
posted by severiina on Apr 18, 2014 - 15 comments

Ottomans not included

For those of you who prefer your science isolated with a side of moody furniture, I give you Lonely Chairs at CERN.
posted by Diagonalize on Apr 14, 2014 - 19 comments

Eppur si muove

The Great Ptolemaic Smackdown is a nine-part series posted by sci-fi author and statistician Michael F. Flynn to his blog last year, covering the historical conflict between heliocentrism and geocentrism, with a special focus on Galileo. They are based on an article (pdf) by Flynn which originally appeared in the Jan/Feb 2013 issue of Analog. [more inside]
posted by zarq on Apr 8, 2014 - 10 comments

Drop it like it's hot

How to melt an aluminum slug (action heats up around the 2' mark) with a DIY induction heater (obl. wiki).
posted by Blazecock Pileon on Apr 4, 2014 - 38 comments

there is no soundtrack

Finite time blowup for an averaged three-dimensional Navier-Stokes equation - "[Terence Tao] has shown that in an alternative abstract universe closely related to the one described by the Navier-Stokes equations, it is possible for a body of fluid to form a sort of computer, which can build a self-replicating fluid robot that, like the Cat in the Hat, keeps transferring its energy to smaller and smaller copies of itself until the fluid 'blows up.' " [1,2,3] (previously)
posted by kliuless on Mar 9, 2014 - 15 comments

John Baez on the maths of connecting everyone (and everything) on earth

Network Theory Overview - "The idea: nature and the world of human technology are full of networks! People like to draw diagrams of networks. Mathematical physicists know that in principle these diagrams can be understood using category theory. But why should physicists have all the fun? This is the century of understanding living systems and adapting to life on a finite planet. Math isn't the main thing we need, but it's got to be part of the solution... so one thing we should do is develop a unified and powerful theory of networks." (via ;)
posted by kliuless on Mar 2, 2014 - 17 comments

ITER

A Star in a Bottle. "An audacious plan to create a new energy source could save the planet from catastrophe. But time is running out."
posted by homunculus on Feb 25, 2014 - 52 comments

Looking Deep Inside Nature

X-ray photography of plants and animals by physicist Arie van’t Riet. [via]
posted by brundlefly on Jan 27, 2014 - 5 comments

Everybody Talks About The Weather...

From I Fucking Love Science: "In a paper posted online this week Professor Stephen Hawking claimed that black holes do not exist - at least, not as we currently understand them. He claims that the traditional notion of a black hole's "event horizon" from which nothing can escape, even light, is incompatible with quantum physics. If so, physicists will have to redefine black holes entirely." [more inside]
posted by runcibleshaw on Jan 27, 2014 - 44 comments

The Chain Fountain

A video showing a chain of beads behaving in a very peculiar way appeared on Youtube some time ago. Many people attempted to provide explanations, but most of them weren't quite satisfactory. [more inside]
posted by tykky on Jan 17, 2014 - 30 comments

I Was Told There Would Be No Math

M.I.T. professor Max Tegmark explores the possibility that math does not just describe the universe, but makes the universe.
posted by COD on Jan 14, 2014 - 111 comments

One pill makes you nano, and one pill makes you giga...

The pressure of a human bite is about 1/9th of the atmospheric pressure on Venus. The fastest bacterium on earth is just outstripping the fastest glacier. A square meter of sunshine in the spring imparts about 1 horsepower. [more inside]
posted by kagredon on Dec 7, 2013 - 20 comments

Gravity Visualized

Dan Burns explains his space-time warping demo at a PTSOS workshop at Los Gatos High School, on March 10, 2012. [more inside]
posted by Blasdelb on Dec 3, 2013 - 27 comments

binding the andat

Closing in on the twin prime conjecture (Quanta) - "Just months after Zhang announced his result, Maynard has presented an independent proof that pushes the gap down to 600. A new Polymath project is in the planning stages, to try to combine the collaboration's techniques with Maynard's approach to push this bound even lower." [more inside]
posted by kliuless on Dec 1, 2013 - 16 comments

ASCII fluid simulator

ASCII fluid simulator (source code)
posted by Blazecock Pileon on Nov 30, 2013 - 24 comments

The Leidenfrost Maze

When a liquid is dropped onto a smooth plate that is heated to a specific temperature well above its boiling point, boiled vapor will get trapped underneath the remainder of the droplet insulating it from the hot plate, allowing it to dance around the plate like oil on a wet surface in what is known as the Leidenfrost effect. Intriguingly, surfaces that are grooved into the shape of a saw blade will cause droplets suspended by the Leidenfrost effect to predictably skitter in the direction of the groove, allowing University of Bath undergraduate students Carmen Cheng and Matthew Guy to build a fascinating maze. [more inside]
posted by Blasdelb on Oct 2, 2013 - 32 comments

My God, it's full of... everything

Revelations in the field of quantum physics have resulted in the discovery of the Amplituhedron, a jewel-like higher dimensional object whose volume elegantly predicts fundamental physical processes that took the brilliant Dr. Richard Feynman hundreds of pages of abstruse mathematics to describe. The theoretical manifold not only enables simple pen-and-paper calculation of physics that would normally require supercomputers to work out, but also challenges basic assumptions about the nature of reality -- forgoing the core concepts of locality and unitarity and suggesting that space and time are merely emergent properties of a timeless, infinitely-sided "master amplituhedron," whose geometry represents the sum total of all physical interactions. More: The 152-page source paper on arXiv [PDF] - Lead author Nima Arkani-Hamed's hour-long lecture at SUSY 2013 - Scans of Arkani-Hamed's handwritten lecture notes - A far more detailed lecture series "Scattering Without Space Time": one, two, three - Arkani-Hamed previously on MeFi - A hot-off-the-presses Wikipedia page (watch this space)
posted by Rhaomi on Sep 18, 2013 - 128 comments

The Feynman Lectures on Physics

Caltech and The Feynman Lectures Website are pleased to present this online edition of The Feynman Lectures on Physics. Now, anyone with internet access and a web browser can enjoy reading a high-quality up-to-date copy of Feynman's legendary lectures.
posted by Artw on Sep 14, 2013 - 27 comments

Superposition

Covariance is a particle detector-inspired art installation in the London Canal Museum's ice wells. It is part of the Superposition: physicists and artists in conversation project.
posted by homunculus on Aug 28, 2013 - 3 comments

All to do with honor and country

Why particle physics matters [no pun intended]. Physicists from around the world talk about why we study the nature of the universe. [via] [more inside]
posted by Eideteker on Aug 20, 2013 - 17 comments

conservation of information

A Black Hole Mystery Wrapped in a Firewall Paradox - "A paradox around matter leaking from black holes puts into question various scientific axioms: Either information can be lost; Einstein's principle of equivalence is wrong; or quantum field theory needs fixing." [more inside]
posted by kliuless on Aug 18, 2013 - 36 comments

The crumbs off his plate are the entire careers of other people.

Neil Degrasse Tyson waxes eloquent about Isaac Newton [chopped YouTube link, full length video 'SciCafe: Life the Universe and Everything' here] [more inside]
posted by mysticreferee on Jul 19, 2013 - 8 comments

Assume A Cylindrical Cow

The Mathematics of the Manhattan Project
posted by empath on Jul 10, 2013 - 40 comments

Pathological Physics: Tales from "The Box"

This is a talk I gave on June 1, 2012, about the numerous crank physics letters and books that had been sent to, and saved by, the Physics Department at Cal Poly in San Luis Obispo, CA.
Don't believe the apparent video length, the talk is 41 minutes long and the camera sticks around for about 20 minutes of the awesome Q&A afterwards.
[more inside]
posted by Blasdelb on Apr 30, 2013 - 67 comments

It will have 10-20 failures and two successes. That's my hypothesis.

7-year old Audri builds a Rube Golberg machine to trap a monster. (SLYT) [more inside]
posted by Room 641-A on Apr 23, 2013 - 42 comments

"Ring it Out"

Last fall, the Canadian Space Agency asked students to design a simple science experiment that could be performed in space, using items already available aboard the International Space Station. Today, Commander Chris Hadfield conducted the winner for its designers: two tenth grade students, Kendra Lemke and Meredith Faulkner, in a live feed to their school in Fall River, Nova Scotia. And now, we finally have an answer to the age-old question, What Happens When You Wring Out A Washcloth In Space? [more inside]
posted by zarq on Apr 18, 2013 - 63 comments

Nothing is the most important part of the Universe.

The concept of nothing is as old as zero itself. How do we grapple with the concept of nothing? From the best laboratory vacuums on Earth to the vacuum of space to what lies beyond, the idea of nothing continues to intrigue professionals and the public alike. Join moderator and Hayden Planetarium Director Neil deGrasse Tyson as he leads a spirited discussion with a group of physicists, philosophers and journalists about the existence of nothing. The event, which was streamed live to the web, took place at the American Museum of Natural History on March 20, 2013. [more inside]
posted by lazaruslong on Mar 25, 2013 - 32 comments

+

"I'm confident that it's a Higgs particle. I don't need to call it Higgs-like any more...I may need to eat my words one day, but I think that's very unlikely."
"Cern scientists believe newly discovered particle is the real Higgs boson. Results of analysis at Cern in Switzerland show particle behaves precisely as expected." Previously
posted by Fizz on Mar 15, 2013 - 53 comments

Aspiring Animators & Game Designers, Study Your Calculus & Combinatorics

Every film Pixar has produced has landed in the top fifty highest-grossing animated films of all time. What's their secret? Mathematics. Oh, and 22 Rules of Storytelling. [more inside]
posted by zarq on Mar 8, 2013 - 40 comments

Oliver Heaviside

Surely you've heard of the physicist Maxwell, but what about Oliver Heaviside? Oliver Heaviside: A first-rate oddity.
posted by Evernix on Feb 14, 2013 - 14 comments

OMG SCIENCE!

Henry Reich of Minute Physics shares his favorite science blogs, video channels, and other resources on the web. (Minute Physics previously) [more inside]
posted by ocherdraco on Feb 8, 2013 - 5 comments

the power and beauty of mathematics

An eternity of infinities (via) [more inside]
posted by kliuless on Feb 2, 2013 - 23 comments

Spoiler: Everyone Dies

The Timeline of the Far Future is a Wikipedia article which serves as a gateway to a ton of fascinating scientific topics on the far edge of human understanding: ~50,000 years from now the Earth will enter a new Glacial period; ~100,000 years from now the Earth will likely have experienced a supervolcanic eruption; ~10,000,000 years from now the East African Rift divides the continent of Africa in to two land masses; ~20,000,000,000 years from now the Universe effectively dies due to The Big Rip.
posted by codacorolla on Jan 22, 2013 - 93 comments

The Physics of Bad Piggies

The physics of Bad Piggies:  Scale, mass, scale again,  balloons and friction
posted by Artw on Jan 7, 2013 - 11 comments

For SCIENCE!

Decay is a free, downloadable zombie film set entirely at the Large Hadron Collider at CERN. [more inside]
posted by zarq on Dec 22, 2012 - 15 comments

There is always a last time for everything

Is Science Fiction promoting pseuodoscience? Is it not really better than fantasy? Is it exhausted and dying, per Paul Kincaid (part 1, part 2), a sort of genre-writing version of completing a list of The Nine Billion Names of God? Does physics-bothering unrepentant space case Alistair Reynolds have a compass pointing the way forwards?
posted by Artw on Dec 19, 2012 - 84 comments

direct realism

The Nature of Computation - Intellects Vast and Warm and Sympathetic: "I hand you a network or graph, and ask whether there is a path through the network that crosses each edge exactly once, returning to its starting point. (That is, I ask whether there is a 'Eulerian' cycle.) Then I hand you another network, and ask whether there is a path which visits each node exactly once. (That is, I ask whether there is a 'Hamiltonian' cycle.) How hard is it to answer me?" (via) [more inside]
posted by kliuless on Dec 1, 2012 - 19 comments

What's gonna happen outside the window next?

Noam Chomsky on Where Artificial Intelligence Went Wrong
posted by cthuljew on Nov 18, 2012 - 55 comments

Rolling in the Higgs

"I'm a harmony addict working on a master's in theoretical physics; what ELSE was I going to make a YouTube channel about?" And so was born A Capella Science, brainchild of lifelong harmonics junkie and physics master's student Tim Blais. His first track, "Rolling in the Higgs (Adele parody)", takes on the Large Hadron Collider and the Higgs boson.
posted by Laminda on Aug 24, 2012 - 14 comments

"Because I'm in space, and I can, I get to name these yo-yo tricks."

NASA Astronaut Don Pettit uses his off-duty time to practice his microgravity yo-yo skills.
posted by OverlappingElvis on Aug 11, 2012 - 39 comments

A universe entirely made of antimatter wouldn't be a Michael Bay reality show

In case you needed another reason to love/fear them: With a tone that sometimes rings condescending or conspiratorial but always wonderfully flippant, the best minds of cracked.com discuss the grandest extremities of modern physics.
posted by es_de_bah on Jul 22, 2012 - 8 comments

noncommutative balls in boxes

Morton and Vicary on the Categorified Heisenberg Algebra - "In quantum mechanics, position times momentum does not equal momentum times position! This sounds weird, but it's connected to a very simple fact. Suppose you have a box with some balls in it, and you have the magical ability to create and annihilate balls. Then there's one more way to create a ball and then annihilate one, than to annihilate one and then create one. Huh? Yes: if there are, say, 3 balls in the box to start with, there are 4 balls you can choose to annihilate after you've created one but only 3 before you create one..." [more inside]
posted by kliuless on Jul 21, 2012 - 78 comments

For SCIENCE!

Science for the people: take a renowned scientist (Nobel Laureate Leon Lederman (Physics), Stephen Benkovik (Chemisty)) and sit them down on a street corner to answer questions.
Also: The No Excuse List (resources to learn just about anything), Minute Physics, Udacity (free, University-level courses online) and PetriDish, a Kickstarter for science projects.
posted by Bora Horza Gobuchul on Jul 13, 2012 - 7 comments

World's largest musical Tesla Coils

Your music played through giant Tesla Coils in Cleveland Ohio. [more inside]
posted by pallen123 on Jul 7, 2012 - 8 comments

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