这些辐射的原子衰变得非常快。
她还说，这个实验还有另外一个部分，是关于在原子衰变的刹那间的两个宇宙。
She also said that the experiment had another part, involving _two_ universes around the choice point of the time of decay of the atom.
假使有人把这样一个系统不加干扰地放在那里一个小时，本人们便能够说：假如该段期间没有任何原子衰变，那只猫便依然活著。
If one has left this entire system to itself for an hour, one would say that the cat still lives if meanwhile no atom has decayed.
“这些生物从一个我们从未想到的来源获取能量，”McKay惊叹，“南非的极端微生物细菌吃的是岩石里不稳定原子衰变时的放射能。”
"These creatures get their energy from sources we never imagined," McKay exclaims. "the South African extremophile bacteria are powered by the radioactive decay of unstable atoms in the rocks."
盖革计数器(Geiger counter)被用来测量原子衰变时的放射线，如果原子发生衰变，盖革计数器将会触发氰化物气体的释放，致猫于死地。
Geiger counter was included to measure radiation if at some point an atom decayed. Should that happen, the Geiger counter would trigger the release of cyanide gas, which would kill the cat.
盖革计数器(Geigercounter)被用来测量原子衰变时的放射线，如果原子发生衰变，盖革计数器将会触发氰化物气体的释放，致猫于死地。
A Geiger counter was included to measure radiation if at some point an atom decayed. Should that happen, the Geiger counter would trigger the release of cyanide gas, which would kill the cat.
这么大的原子核不可能是稳定的，但在足够长的时间内，在真空附近组装一个原子核以观察真空的衰变是可能的。
A nucleus that large cannot be stable, but it might be possible to assemble one next to a vacuum for long enough to observe the decay of the vacuum.
在一个宇宙中，原子在第一个半衰期中衰变了，于是你有了一只前猫。
So in one universe, the atom decays within the first half-life, and you have an ex-cat. Or ex-qat.
几年前，科学家就宣称发现了这两种元素，例如，1999年，俄罗斯物理学家用高能粒子钙- 48冲击钚- 244，产生了一个很快衰变的第114号元素的原子。
Evidence for the two elements has been mounting for years. In 1999, for example, Russian physicists bombarded plutonium-244 with calcium-48 to produce a single atom of rapidly decaying 114.
假定我们有某种放射性原子，它们以一定的几率衰变。
Suppose we've got some sort of radioactive atom, which has a certain chance of decaying.
原子通过辐射由不稳定状态转变为更加稳定状态的过程称为放射性衰变或放射性。
The process by which an atom changes from an unstable state to a more stable state by emitting radiation is called radioactive decay or radioactivity.
薛定谔的原子一定会衰变。
一团放射性铯137，整体以恒定的速率衰变，但是其内部单个原子的衰变是一种不可预测的随机模式。
A lump of radioactive cesium-137, for example, may decay at a steady rate overall, but individual atoms within the lump will decay in an unpredictable, random pattern.
原子内的一个中子衰变后会产生一个质子、一个电子和一个中微子。
When a neutron inside an atom decays, it produces a proton, an electron, and a neutrino.
但是普渡大学的一组研究者用意想不到的方式挑战了衰变速率恒定这个假设。相比于原子核衰变，他们对随机数更感兴趣。
But that assumption was challenged in an unexpected way by a group of researchers from Purdue University who at the time were more interested in random Numbers than nuclear decay.
它只是一个巧妙地通过衰变成锇和钽而假装成磁单极子的普通的铂原子核。
It was just a garden variety platinum nucleus pretending to be a monopole by cleverly decaying into osmium and tantalum.
一年后，他们成功地让两个元素的原子核聚变，创造出了他们的首个113号元素原子核，但过了不到千分之一秒，它就衰变了。
A year later, they successfully fused two atomic nuclei from these elements, creating their first nucleus of element 113, but it decayed in less than a thousandth of a second.
放射性同位素，是指某种发生放射性衰变的元素中具有相同原子序数但质量不同的核素。
"Radioisotopes" refer to a certain type of elements producing radiation decay that have the same atomic number but different mass of nuclides.
这四种新元素都是人造的，是由火花与原子核相互撞击并且循着放射性超重元素衰变的轨迹而发现的。
The four new elements, all of which are synthetic, were discovered by slamming lighter -nuclei into each other and tracking the following decay of the radioactive superheavy elements.
而大统一理论则预言在原子核中的核子将衰变，重子数守恒将被破坏。
However, the nucleons in nucleus will decay and baryon-number conservation may not be absolute according to the Grand unified theory.
在过去一个世纪中，物理学家们透过全面的观察与实验，证明碳-14原子要花费5,730年的时间来衰变为一个稳定的氮- 14原子。
Physicists have proven through exhaustive observation and experimentation over the course of a century that it takes 5,730 years for Carbon-14 atoms to decay into a stable Nitrogen-14.
这里所指的半衰期是现存原子的一半发生衰变或爆炸所消耗的时间。
By that is meant the time which elapses before half of the existing atoms have disintegrated or exploded.
每个元素至少有一个同位素不稳定原子核可以进行放射性衰变。
Each element has at least one isotope with unstable nuclei that can undergo radioactive decay.
与三能级原子系统相比，四能级原子相干效应即可导致电磁感应透明的产生，也可产生电磁感应吸收现象，取决于控制光的强度和第四个能级衰变率的大小。
Compared with three-level atomic system, the atomic coherence effects in four-level can lead to EIT and EIA, which depend on the intensity of control light and the relaxation of the fourth level.
原子激发态是不稳定的，其必然会自发地向低能级衰变，产生自发辐射现象。
Atom's motivated state in not stable, it inevitably disintegrate into the lower energy state, which makes the phenomenon of the spontaneous radiation.
在衰变时由原子核释放出能量。
During the disintegration energy is released from the nucleus.
而且，在弱相互作用重粒子衰变成超级弱相互作用重粒子过程中，应该产生光子和电子等副产品，并且这些粒子也会与质量较轻的原子核发生碰撞，将它们撞碎。
In addition, the decay from WIMP to super-WIMP should have produced photons or electrons as a by-product, and these particles can smash into light nuclei and break them apart.
中微子是创建作为放射性衰变或核反应，如某些类型的结果，在阳光下放置在核反应堆，或当宇宙射线撞击原子。
Neutrinos are created as a result of certain types of radioactive decay or nuclear reactions such as those that take place in the Sun, in nuclear reactors, or when cosmic rays hit atoms.
中微子是创建作为放射性衰变或核反应，如某些类型的结果，在阳光下放置在核反应堆，或当宇宙射线撞击原子。
Neutrinos are created as a result of certain types of radioactive decay or nuclear reactions such as those that take place in the Sun, in nuclear reactors, or when cosmic rays hit atoms.
应用推荐