Dande Lion Farmva

Numbers speak. [Img Src ] Once upon a time, nosotros had problems inwards the foundations of physics. Then nosotros solved them. That was forty years ago. Today nosotros pass most of our fourth dimension discussing non-problems. Here is i of these non-problems. Did y'all know that the universe is spatially almost flat? There is a discover inwards the cosmological concordance model called the “curvature parameter” that, according to electrical current observation , has a value of 0.000 plus-minus 0.005. Why is that a problem? I don’t know. But hither is the storey that cosmologists tell. From the equations of General Relativity y'all tin calculate the dynamics of the universe. This agency y'all larn relations betwixt the values of observable quantities today too the values they must accept had inwards the early on universe. The contribution of curved shape to the dynamics, it turns out, increases relative to that of thing too radiations every bit the universe exp...

I’ve had many interesting reactions to my recent shipping service nigh inflation , this persuasion that the early on universe expanded exponentially in addition to thereby flattened in addition to smoothed itself. The perchance most interesting reply to my pointing out that inflation doesn’t solve the problems it was invented to solve is a flabbergasted: “But everyone else says it does.” Not similar I don’t know that. But, yes, most people who function on inflation don’t fifty-fifty acquire the basics right. Inflation flattens the universe similar photoshop flattens wrinkles. Impressive! [ Img Src ] I’m non sure why that is so. Those who I personally speak alongside pretty chop-chop grip that what I say is correct. The math isn’t all that hard in addition to the province of affairs pretty clar. The puzzle is, why in addition to then exercise hence many of them tell a floor that is nonsense? And why exercise they proceed pedagogy it to students, impress it inwards textbooks, i...

As y'all in all probability noticed from the uptick inwards blogposts, I’ve finished writing the book. The publication engagement is laid upward for June 12, 2018. We convey a encompass picture now: as well as nosotros convey a webpage, where y'all tin preoder my masterwork . The publishing concern continues to surprise me. I convey no thought who wrote the text accompanying the Amazon page and, for all I tin tell, the offset judgement doesn’t fifty-fifty brand feel grammatically. Neither, for that matter, did I convey anything to create amongst the encompass image. But well, it’s dark, which is plumbing equipment enough. The mass is close the purpose of arguments from beauty, naturalness, as well as elegance inwards the foundations of physics, yesteryear which I hateful high unloosen energy physics, cosmology, quantum gravity, as well as quantum foundations. Or at to the lowest degree that’s what I thought the mass would hold upward about. What the mass actually is cl...

Popper, upside-down. Image: Wikipedia. Popper is dead. Has been dead since 1994 to endure precise. But also his philosophy, that a scientific thought needs to endure falsifiable, is dead. And luckily so, because it was utterly impractical. In practice, scientists can’t falsify theories. That’s because whatever theory tin endure amended inward hindsight hence that it fits novel data. Don’t gyre your eyes – updating your noesis inward response to novel information is scientifically solely audio procedure. So, no, you lot can’t falsify theories. Never could. You could yet jibe planetary orbits amongst a quadrillion of epicycles or invent a luminiferous aether which but precisely mimics special relativity. Of course of teaching no ane inward their right heed does that. That’s because repeatedly fixed theories leave of absence hideously difficult, non to cite hideous, period. What happens instead of falsification is that scientists transition to simpler explanations. To endure fai...

“Is this all the same science?” has give-up the ghost a recurring query inwards the foundations of physics. Whether it’s the multiverse, string theory, supersymmetry, or inflation, concerns abound that theoreticians receive got crossed a line. Science author Jim Baggott called the novel genre “ fairy-tale science .” Historian Helge Kragh coined the term “ higher speculations ,” in addition to Peter Woit , to a greater extent than recently, suggested the cite “ fake physics .” But the defendant behave on every bit if nothing’s amiss, contestation that speculation is an essential business office of science. And I? I receive got a problem. On the ane hand, I empathise the concerns nearly breaking alongside centuries of tradition. We used to followed upward each hypothesis alongside experimental test, in addition to the longer the delay betwixt hypothesis in addition to test, the easier for pseudoscience to accept foothold. On the other hand, I concur that speculation is a necessa...

Think imitation tidings too echo chambers are a work alone inwards political discourse? Think again. You give away many examples of myths too falsehoods on pop scientific discipline pages. Most of them surroundings the hype of the day, only some of them receive got been repeated therefore oftentimes they immediately seem inwards papers, seminar slides, too textbooks. And many scientists, I receive got noticed alongside alarm, genuinely believe them. I can’t say much almost fields exterior my specialty, only it’s obvious this happens inwards physics. The claim that the bullet cluster rules out modified gravity, for example, is a peculiarly pervasive myth . Another ane is that inflation solves the flatness problem , or that in that place is a flatness work to get with. I lately constitute some other myth to add together to my list: the assertion that the cosmological constant is “the worst prediction inwards the history of physics.” From that this catchy only incorrect declaration...

The ivory tower from The Neverending Story Science has a problem. The introduce scheme of academia discourages inquiry that has tangible outcomes, together with this wastes a lot of money. Of course of didactics scientific inquiry is non alone pursued inward academia, but much of basic inquiry is. And if basic inquiry doesn’t movement forward, scientific discipline past times large risks getting stuck. At the root of the work is academia’s flawed vantage structure. The essence of the scientific method is to essay hypotheses past times experiment together with and so keep, revise, or discard the hypotheses. However, using the scientific method is suboptimal for a scientist’s career if they are rewarded for inquiry papers that are cited past times every bit many of their peers every bit possible. To the goal of producing pop papers, the best tactic is to operate on what already is popular, together with to write papers that allow others to speedily hit farther papers on the same...

Physics is old. Together alongside astronomy, it’s the oldest scientific discipline. And the historic menses shows. Compared to other scientific areas, physics is a piece of cake growing field. I learned this from a 2010 newspaper past times Larsen too van Ins . The authors counted the number of publications per scientific areas. In physics, the number of publications grows at an annual charge per unit of measurement of 3.8%. This way it currently takes xviii years for the trunk of physics literature to double. For comparison, the growth charge per unit of measurement for publications inwards electrical engineering scientific discipline too engineering is 9% (7.5%) too has a doubling fourth dimension of 8 years (9.6 years). The full number of scientific papers closely tracks the full number of authors, irrespective of discipline. The relation betwixt the 2 tin laissez passer on notice live on about fit past times a ability law, then that the number of papers is equal to the number o...

You haven’t seen headlines of late nigh the Large Hadron Collider, receive got you? That’s because fifty-fifty the most skilled scientific discipline writers can’t regain much to write about. There are loads of information for sure, in addition to nuclear physicists are airheaded amongst joy because the LHC has delivered a wealth of novel information nigh the construction of protons in addition to heavy ions . But the expert quondam proton has never been the media’s darling. And the fancy novel things that many particle physicists expected – the supersymmetric particles, nighttime matter, extra dimensions, dark holes, in addition to thence on – receive got shunned CERN. It’s a PR disaster that particle physics won’t hold upwardly able to milk tremble off easily. Before the LHC’s launch inwards 2008, many theorists expressed themselves confident the collider would create novel particles likewise the Higgs boson. That hasn’t happened. And Earth isn’t remotely equally dumb equally...

I’ve been told that ane straight off does video trailers for books as well as and thus here’s me explaining what led me to write the book.

I convey a novel newspaper on the arXiv , which came out of a collaboration amongst Tobias Mistele in addition to Tom Price. We fed a neural network amongst information most the publication action of physicists in addition to tried to brand a “fake” prediction, for which nosotros used information from the years 1996 upward to 2008 to predict the side past times side x years. Data come upward from the arXiv via the Open Archives Initiative . To prepare the network, nosotros took a random sample of authors in addition to asked the network to predict these authors’ publication data. In each bike the network learned how proficient or bad its prediction was in addition to and so tried to farther improve it. Concretely, nosotros trained the network to predict the h -index, a mensurate for the issue of citations a researcher has accumulated. We didn’t purpose this issue because nosotros recall it’s especially important, but exactly because other groups convey previously studied it amongs...