文章列表

• 1.万物简史 第243期:马斯特-马克的夸克(15)
• The difficulty in making final determinations is that there are often acres of room for interpretation. Imagine standing in a field at night and tryin...
• 2.万物简史 第242期:马斯特-马克的夸克(14)
• This would mean that the universe was only half the size and age that Sandage believedten billion years. Matters took a further lurch into uncertainty...
• 3.万物简史 第241期:马斯特-马克的夸克(13)
• Hubble realized that this could be expressed with a simple equation, Ho = v/d (where Ho is the constant, v is the recessional velocity of a flying gal...
• 4.万物简史 第240期:马斯特-马克的夸克(12)
• Almost at once the Bogdanov paper excited debate among physicists as to whether it was twaddle, a work of genius, or a hoax. Scientifically, it's clea...
• 5.万物简史 第239期:马斯特-马克的夸克(11)
• String theory has further spawned something called M theory, which incorporates surfaces known as membranesor simply branes to the hipper souls of the...
• 6.万物简史 第238期:马斯特-马克的夸克(10)
• In an attempt to draw everything together, physicists have come up with something called superstring theory. This postulates that all those little thi...
• 7.万物简史 第237期:马斯特-马克的夸克(9)
• It is all, as you can see, just a little unwieldy, but it is the simplest model that can explain all that happens in the world of particles. Most part...
• 8.万物简史 第236期:马斯特-马克的夸克(8)
• Although quarks are much too small to have color or taste or any other physical characteristics we would recognize, they became clumped into six categ...
• 9.万物简史 第235期:马斯特-马克的夸克(7)
• The charged pion and antipion decay respectively into a muon plus antineutrino and an antimuon plus neutrino with an average lifetime of 2.603 x 10-8 ...
• 10.万物简史 第234期:马斯特-马克的夸克(6)
• Particle physics, in short, is a hugely expensive enterprisebut it is a productive one. Today the particle count is well over 150, with a further 100 ...