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Four mathematicians broke a 75-year-old record by finding a denser way to pack high-dimensional spheres. The post To Pack Spheres Tightly, Mathematicians Throw Them at Random first appeared on Quanta Magazine
a year ago

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The Core of Fermat’s Last Theorem Just Got Superpowered

By extending the scope of the key insight behind Fermat’s Last Theorem, four mathematicians have made great strides toward building a “grand unified theory” of math. The post The Core of Fermat’s Last Theorem Just Got Superpowered first appeared on Quanta Magazine

4 hours ago 1 votes
How Can AI Researchers Save Energy? By Going Backward.

Reversible programs run backward as easily as they run forward, saving energy in theory. After decades of research, they may soon power AI. The post How Can AI Researchers Save Energy? By Going Backward. first appeared on Quanta Magazine

3 days ago 2 votes
Will We Ever Prove String Theory?

Promise and controversy continues to surround string theory as a potential unified theory of everything. In the latest episode of The Joy of Why, Cumrun Vafa discusses his progress in trying to find good, testable models hidden among the ‘swampland’ of impossible universes. The post Will We Ever Prove String Theory? first appeared on Quanta Magazine

4 days ago 3 votes
How Paradoxical Questions and Simple Wonder Lead to Great Science

Manu Prakash works on the world’s most urgent problems and seemingly frivolous questions at the same time. They add up to a philosophy he calls “recreational biology.” The post How Paradoxical Questions and Simple Wonder Lead to Great Science first appeared on Quanta Magazine

5 days ago 4 votes
Singularities in Space-Time Prove Hard to Kill

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists will need to go to the ends of space and time to find a fix. The post Singularities in Space-Time Prove Hard to Kill first appeared on Quanta Magazine

6 days ago 6 votes

More in science

Two of My Science-Fiction Stories Published in May

View this email in your browser A Change of Pace from Astronomy News  As you may know, I have been writing science-fiction stories based on good astronomy as my retirement project.  After a good number of rejections from the finest sci-fi magazines the world over, I am now finding some success. My ninth and tenth stories […] The post Two of My Science-Fiction Stories Published in May appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.

17 hours ago 2 votes
Telepathy Tapes Promotes Pseudoscience

I was away on vacation the last week, hence no posts, but am now back to my usual schedule. In fact, I hope to be a little more consistent starting this summer because (if you follow me on the SGU you already know this) I am retiring from my day job at Yale at the […] The post Telepathy Tapes Promotes Pseudoscience first appeared on NeuroLogica Blog.

7 hours ago 1 votes
The world of tomorrow

When the future arrived, it felt… ordinary. What happened to the glamour of tomorrow?

5 hours ago 1 votes
The Core of Fermat’s Last Theorem Just Got Superpowered

By extending the scope of the key insight behind Fermat’s Last Theorem, four mathematicians have made great strides toward building a “grand unified theory” of math. The post The Core of Fermat’s Last Theorem Just Got Superpowered first appeared on Quanta Magazine

4 hours ago 1 votes
Pushing back on US science cuts: Now is a critical time

Every week has brought more news about actions that, either as a collateral effect or a deliberate goal, will deeply damage science and engineering research in the US.  Put aside for a moment the tremendously important issue of student visas (where there seems to be a policy of strategic vagueness, to maximize the implicit threat that there may be selective actions).  Put aside the statement from a Justice Department official that there is a general plan is to "bring these universities to their knees", on the pretext that this is somehow about civil rights.   The detailed version of the presidential budget request for FY26 is now out (pdf here for the NSF portion).  If enacted, it would be deeply damaging to science and engineering research in the US and the pipeline of trained students who support the technology sector.  Taking NSF first:  The topline NSF budget would be cut from $8.34B to $3.28B.  Engineering would be cut by 75%, Math and Physical Science by 66.8%.  The anticipated agency-wide success rate for grants would nominally drop below 7%, though that is misleading (basically taking the present average success rate and cutting it by 2/3, while some programs are already more competitive than others.).  In practice, many programs already have future-year obligations, and any remaining funds will have to go there, meaning that many programs would likely have no awards at all in the coming fiscal year.  The NSF's CAREER program (that agency's flagship young investigator program) would go away  This plan would also close one of the LIGO observatories (see previous link).  (This would be an extra bonus level of stupid, since LIGO's ability to do science relies on having two facilities, to avoid false positives and to identify event locations in the sky.  You might as well say that you'll keep an accelerator running but not the detector.)  Here is the table that I think hits hardest, dollars aside: The number of people involved in NSF activities would drop by 240,000.  The graduate research fellowship program would be cut by more than half.  The NSF research training grant program (another vector for grad fellowships) would be eliminated.   The situation at NIH and NASA is at least as bleak.  See here for a discussion from Joshua Weitz at Maryland which includes this plot:  This proposed dismantling of US research and especially the pipeline of students who support the technology sector (including medical research, computer science, AI, the semiconductor industry, chemistry and chemical engineering, the energy industry) is astonishing in absolute terms.  It also does not square with the claim of some of our elected officials and high tech CEOs to worry about US competitiveness in science and engineering.  (These proposed cuts are not about fiscal responsibility; just the amount added in the proposed DOD budget dwarfs these cuts by more than a factor of 3.) If you are a US citizen and think this is the wrong direction, now is the time to talk to your representatives in Congress. In the past, Congress has ignored presidential budget requests for big cuts.  The American Physical Society, for example, has tools to help with this.  Contacting legislators by phone is also made easy these days.  From the standpoint of public outreach, Cornell has an effort backing large-scale writing of editorials and letters to the editor.

yesterday 1 votes