物理学：インデックス

　　　　　　　　　　　　　　　　　　　（リンク::::::）
物理学：インデックス
http://nam-students.blogspot.jp/2013/02/blog-post_1381.html（本頁）
科学：インデックス
http://nam-students.blogspot.jp/2013/04/blog-post_19.html 

アインシュタイン

https://love-and-theft-2014.blogspot.com/2021/05/blog-post_88.html

Raum und Zeit (Minkowski) 1908
http://nam-students.blogspot.jp/2012/01/raum-und-zeit-minkowski1908.html
ハドロンの分類図、SU(３)の図
http://nam-students.blogspot.jp/2015/12/su.html?m=0
フィリップ・アンダーソン
https://nam-students.blogspot.com/2019/05/blog-post_39.html

参考：
／／／／＼　　　　時間的　　　　／／／／／
／／／／／＼　　　　｜　　　　／／／／／／
／／／／／／＼　　未　来　　／／／／／／／
／／／／／／／＼　　｜　　／／／／／／／／
／／／／／／／／＼　｜　／／／／／／／／／
／／／／／／／／／＼｜／／／／／／／／／／
ーーーーー空間的ーーＸーー空間的ーーーーー
／／／／／／／／／／｜＼(＝物自体)／／／／
／／／／／／／／／　｜　＼／／／／／／／／
／／／／／／／／　過　去　＼／／／／／／／
／／／／／／／　　　｜　　　＼／／／／／／
／／／／／／　　　時間的　　　＼／／／／／

ミンコフスキー時空図
参照：湯川秀樹『物理講義』

おまけ：
アインシュタインとボーア

https://youtu.be/BXh815-aKK0

https://youtu.be/MasPwOAKHsc

参考：
『ニールス・ボーア論文集〈1〉因果性と相補性 』(岩波文庫) [文庫]
山本 義隆 (編集, 翻訳), Niels Bohr (原著)
ボーア「原子物理学における認識論的諸問題にかんするアインシュタインとの討論」（中公世界の名著６６『現代の科学２』所収）
『物理学の探検』ガモフ（白揚社）

https://i.imgur.com/txweovp.gif

1971年、重力が地球の1/6の月面でハンマーと羽毛を同時に落下させる有名な実験。

動画音声ではガリレオについての解説がある。

The Hammer and the Feather

http://alanbeangallery.com/hammerfeather-story.html

 "Well, in my left hand I have a feather; in my right hand a hammer. I guess one of the reasons we got here today was because of the gentleman named Galileo. A long time ago, he made a rather significant discovery about falling objects in gravity fields; and we thought - where would be a better place to confirm his findings than on the Moon? And, so, we thought we'd try it here for you. The feather is, appropriately, from an Air Force Academy falcon. I'll drop the hammer and the feather and, hopefully, they'll hit the ground at the same time."
Well, Dave let them go and, since there is no atmosphere on the Moon, they fell side by side. They did fall more slowly than on Earth because the gravity is one-sixth that of Earth's.
Dave continued, "How about that. This proves that Mr. Galileo was correct in his findings."

＿＿

 At the end of the final moonwalk of the Apollo 15 mission in July 1971, Commander David Scott stood in front of the remote- controlled television camera to perform a live demonstration for viewers back on Earth. ... 

“In my left hand, I have a feather,” 

 “in my right hand, a hammer. I guess one of the reasons we got here today was because of a gentleman named Galileo a long time ago, who made a rather significant discovery about falling objects in gravity fields. ……

The feather happens to be, appropriately, a falcon’s feather, for our Falcon, and I’ll drop the two of them here and hopefully they’ll hit the ground at the same time.”

“How about that?” 

 “Mr Galileo was correct in his findings!”

https://sites.google.com/site/qitranscripts/transcripts/7x12

Audio: [Scott] "And I'll drop the two of them here and hopefully they'll hit the ground at the same time" [He drops them] "How about that?" "Looks like mister Galileo was correct in his findings."

The Hammer and the Feather - YouTube

https://youtube.com/watch?v=4mTsrRZEMwA

https://youtu.be/oYEgdZ3iEKA

http://www.dailymail.co.uk/sciencetech/article-2819205/Testing-gravity-world-s-BIGGEST-vacuum-chamber-Watch-Brian-Cox-prove-bowling-ball-feathers-fall-together.html

Renaissance Genius : Galileo Galilei & H: - 34 ページ

https://books.google.co.jp/books?isbn...

David Whitehouse - 2009 - プレビュー

Below Astronomer with astrolabe. At the end of the final moonwalk of the Apollo 15 mission in July 1971, Commander David Scott stood in front of the remote- controlled television camera to perform a live demonstration for viewers back on Earth. ... hand and a feather in the other. He released them at the same time, and, being in a vacuum with no air resistance, the feather and the hammer struck the lunar soil at exactly the same speed. "How about that," said Scott, "Galileo was correct.

One of the reasons we got here today was becouse of a gentleman named Galileo.

 "How about that," said Scott, "Galileo was correct.

http://www.americaspace.com/2012/07/29/mr-galileo-was-correct-the-legacy-of-apollo-15/

Back at the lander, with the minutes of the final Moonwalk rapidly winding down, Scott had one last opportunity to give a scientific demonstration to an audience of millions back home. It came from a suggestion by Joe Allen, who was inspired by the experimental work of Galileo Galilei. More than three centuries earlier, Galileo had stood atop the Leaning Tower of Pisa and dropped two weights of different sizes, proving that gravity acted equally on them, regardless of mass. Now, in front of his own Leaning Tower – the slightly-tilted Falcon – Scott performed his own version of the experiment.

“In my left hand, I have a feather,” he told his audience, “in my right hand, a hammer. I guess one of the reasons we got here today was because of a gentleman named Galileo a long time ago, who made a rather significant discovery about falling objects in gravity fields. The feather happens to be, appropriately, a falcon’s feather, for our Falcon, and I’ll drop the two of them here and hopefully they’ll hit the ground at the same time.”

They did…and applause echoed throughout Mission Control.

“How about that?” Scott concluded triumphantly. “Mr Galileo was correct in his findings!” He originally planned to try it first, to check that it would work, but was worried that it might get stuck to his glove. He decided to ‘wing it’ and, thankfully, it worked. In his autobiography, Irwin would relate that Scott had actually carried two feathers on Apollo 15, one from the falcon mascot at the Air Force Academy. Unfortunately – and much to Scott’s irritation – Irwin accidentally stepped on it! They searched for the feather, but could only find his big bootprints. “I’m wondering,” wrote Irwin, “if hundreds of years from now somebody will find a falcon’s feather under a layer of dust on the surface of the Moon and speculate on what strange creature blew it there.”