Everything's coming up LIGO this year, as the collaboration announced that it spotted gravitational waves from a second binary black hole merger. But there was plenty of other stuff going on this week, too, such as imaging the photons produced...
The Large Hadron Collider (LHC) at CERN has already delivered more high energy data than it had in 2015. To put this in numbers, the LHC has produced 4.8 fb-1, compared to 4.2 fb-1 last year, where fb-1 represents one inverse femtobarn, the unit used to evaluate the data sample size. This was achieved in
Le Grand collisionneur de hadrons (LHC) du CERN a déjà produit depuis avril plus de données à haute énergie qu’en 2015. Pour quantifier le tout, le LHC a produit 4.8 fb-1 en 2016, à comparer aux 4.2 fb-1 de l’année dernière. Le symbole fb-1 représente un femtobarn inverse, l’unité utilisée pour évaluer la taille des
The NPR program Here and Now has been running segments this week on Science in America, and one of these from yesterday featured me talking about science literacy. We had some technical difficulties getting this recorded– it was supposed to happen at a local radio studio last week, but they had some kind of glitch,…
Another week, another batch of photos. This is coming on Friday rather than the weekend because I’m going to be incommunicado for most of the next week, and have some free time now. 284/366: LIGO, Eat Your Heart Out Sure, LIGO detected gravitational waves from a second pair of merging black holes, but I found…
The Higgs field gives mass to elementary particles, but most of our mass comes from somewhere else. The story of particle mass starts right after the big bang. During the very first moments of the universe, almost all particles wereShow More Summary
LHCP2016 is running yet with further analysis on 2015 data by people at CERN. We all have seen the history unfolding since the epochal event on 4 July 2012 where the announcement of the great discovery happened. Since then, also Kibble passed away. What is still there is our need of a deep understanding of the […]
For a second time, scientists from the LIGO and Virgo collaborations saw gravitational waves from the merger of two black holes. Scientists from the LIGO and Virgo collaborations announced today the observation of gravitational waves...Show More Summary
In a couple hours, at 1:15 pm New York time, there will be a press conference at the AAS meeting where LIGO and Virgo scientists will discuss “ongoing research” (webcast here). The general assumption is that there will be observations … Continue reading ?
(Well, not really oops... It's deliberate.) LIGO has announced another gravitational wave detection from a black hole merger! This time the black holes were 14.2 and 7.5 times the mass of the sun, and merged to form a new black hole of mass 20.8 times the mass of our sun, releasing a burst of energy [...]Show More Summary
Project Poltergeist led to the discovery of the ghostly particle. Sixty years later, scientists are confronted with more neutrino mysteries than ever before. In 1930, Wolfgang Pauli proposed the existence of a new tiny particle with no electric charge. Show More Summary
The period of the “String Wars” has now receded far enough into the past that it has become a topic of interest to historians of science. I learned today from Sabine Hossenfelder’s round-up of various articles addressing the history and … Continue reading ?
Contest winners will study special relativity and an Egyptian pyramid using a CERN beamline. Two groups of high school teams have beat out nearly 150 others from around the world to secure a highly prized opportunity: the chance to do...Show More Summary
Shortened “week” this week, because I did the last photo dump on Tuesday. 80% of these are also from a single day, this Friday, when I decided to call a Mental Health Day and get away from stuff that was annoying me by driving down to Scoharie County to hike up Vroman’s Nose. 279/366: Road…
There was a ton of fascinating physics news this week. Among the many highlights: first results from the LISA Pathfinder mission, the first experimental demonstration of a quantum enigma machine, and four new elements finally got their official names, completing...
The idea that dark matter is made of primordial black holes is very old but has always been in the backwater of particle physics. The WIMP or asymmetric dark matter paradigms are preferred for several reasons such as calculability, observational opportunities, and a more direct connection to cherished theories beyond the Standard Model. Show More Summary
Another few weeks of physics blogging at Forbes, collected here for your convenience. — Commercialization Of Space: Three Cheers For The Mundane: Some belated but brief comments on the SpaceApps conference I went to down in NYC. — How Studying Atoms On Earth Helps Us Learn About Other Planets: As a snobby grad student in…
I realized the other day, while on the train constructing more hands, that in this book I'm saddled with drawing lots of hands - almost more than any other single thing. Why? Well, this is a set of ten separate conversations, and most of the conversations take place when the people involved are sitting together. Show More Summary
String theory continues to make progress. Today the news is from Megan Fox: “Sometimes I just know things,” she explains. “I accidentally tap into stuff sometimes. I used to do it as a kid, and I do it as an … Continue reading ?
A few days ago, Terry Tao, whose superb blog typically focuses on things like gaps in the primes and finite-time blowup in PDEs, wrote an unusual post, arguing that virtually everyone knows Donald Trump is unqualified to be President, so the challenge is “just” to make that fact common knowledge (i.e., to ensure everyone knows everyone knows it, […]