Rhett Allain

Hammond

Contributing Writer at Medium

https://t.co/6NnvyopzvQ Physics faculty. Physics blogger. @WIRED @MacGyverCBS and @MythBusters. Physics, Science, Geek. Coffee is my superpower.

Articles

ある物理実験が教えてくれる、「役に立たない」科学に投資すべき理由

6 days ago | wired.jp | Rhett Allain

よくある話だ。政治家は、政府が資金を出している“くだらない科学プロジェクト”に文句をつけ、納税者の不満をあおる。そうしたくなる気持ちもわからないでもない。非常に高価な粒子加速器も、ペチュニアの色についての安価な実験も、金の無駄に思えるのだろう。ビジネスの観点から見た場合、そう思うのも無理はない。とはいえ、仮に収支だけを重視したとしても、誰にも予測できない「波及効果」まで含めて考えれば、こうしたプロジェクトは結果的に大きな利益をもたらすことが多い（ペチュニアの話もぜひ読んでほしい！）。ここで、一見大したことのようには見えないが、実は驚くほど高い費用対効果を発揮した小さな実験を紹介しよう。ヘルツの実験ジェームズ・クラーク・マクスウェルが、後に「マクスウェルの方程式」として知られる電磁気学の基礎となる一連の方程式を発表したのは1862年のことだ。このころ、人類はようやく電池や電流の性質を研究し始めた。マクスウェルが提唱した4つの方程式の最初の2つは、静止した電荷の周囲に存在する電場と磁場を表している。...
This Famous Physics Experiment Shows Why the Government Should Support ‘Useless’ Science

2 weeks ago | technewstube.com | Rhett Allain

Tech News Tube is a real time news feed of the latest technology news headlines.Follow all of the top tech sites in one place, on the web or your mobile device.
This Famous Physics Experiment Shows Why the Government Should Support ‘Useless’ Science

2 weeks ago | wired.com | Rhett Allain

It's nothing new—politicians complain about silly science projects funded by the government to get taxpayers riled up. I get it. You might think super expensive particle accelerators or even dirt-cheap experiments on the color of petunias are a waste of money. OK, you’re coming from a business perspective. But even if you care only about money in and money out, if you account for all the downstream effects—which no one can foresee—these projects often do pay off.
Physics of the Torpedo Bat: Finding the Location of the Sweet Spot

2 weeks ago | rjallain.medium.com | Rhett Allain

Everyone is talking about the NY Yankees and their use of a new “torpedo bat”. It’s basically a bat that is wider and then tapered at the end (like a torpedo). The idea is that this bat optimizes the sweet spot while increasing the contact area. This makes it easier to get “good” hits and win games (I guess). I really don’t know much about baseball, but I know something about physics (sometimes). So, what is a sweet spot and how do you find it?
Torpedo Bats and the Physics of the Sweet Spot

3 weeks ago | technewstube.com | Rhett Allain

Tech News Tube is a real time news feed of the latest technology news headlines.Follow all of the top tech sites in one place, on the web or your mobile device.
Torpedo Bats and the Physics of the Sweet Spot

3 weeks ago | wired.com | Rhett Allain

In any sport, having the best gear can make all the difference. Swimmers want a suit with the minimum possible drag. Specialized running shoes trim off seconds in track and field events. Super grippy gloves in football created a whole genre of circus catches. Well, in baseball we have the bat. This season, the New York Yankees have begun to use a new design called the torpedo bat because it supposedly resembles a torpedo (though I doubt it works underwater).
Estás a punto de visualizar el número Pi como nunca para entenderlo de una vez

1 month ago | es.wired.com | Rhett Allain

¡Feliz Día de Pi! El 14 de marzo celebramos π porque 3-14 da las tres primeras cifras de este famoso número. ¿Qué importancia tiene como para dedicarle un día? Para empezar, define la forma más simple y perfecta: el círculo. Así que está en todas partes. Pi es la relación entre la circunferencia y el diámetro de un círculo: π = C/d. No importa lo grande o pequeño que sea un círculo, ese cociente es siempre el mismo. En notación decimal es 3,141592653.
Can’t Wrap Your Head Around Pi? Here’s a Cool Visual to Help

1 month ago | technewstube.com | Rhett Allain

Tech News Tube is a real time news feed of the latest technology news headlines.Follow all of the top tech sites in one place, on the web or your mobile device.
Can’t Wrap Your Head Around Pi? Here’s a Cool Visual to Help

1 month ago | wired.com | Rhett Allain

Happy Pi Day! We celebrate pi on March 14 because 3-14 gives the first three digits of this famous number. But what’s the big deal about pi anyway? Why does it get a day? Well, for starters, it defines the simplest, most perfect shape, the circle. So it’s everywhere around you. Pi is the ratio of the circumference to the diameter of a circle: π = C/d. No matter how big or small a circle is, that ratio is always the same.
Equazioni di fisica, ecco le cinque che dovreste assolutamente conocere

1 month ago | wired.it | Rhett Allain |Federica D'Auria

Tutte le innovazioni tecnologiche su cui facciamo affidamento ogni giorno, dalle automobili agli smartphone, sono state progettate utilizzando la fisica. E anche se non sono necessarie grandi conoscenze scientifiche per utilizzare questi oggetti, tutti noi dovremmo essere in grado comprendere almeno alcune nozioni base di questa materia (così come di musica, arte, storia ed economia).