他的理论是把一只假设的猫放到理论上存在的盒子里再扔进去一个想象中的放射性原子。
The original theory involved putting a hypothetical cat into a theoretical box along with an imagined radioactive atom.
坐在这谈论化学的人没有意识到原子本身在某种程度上就是一种假设,他们之间的相互反应更是如此,而生物反应又比前两者更甚了。
People who sit there and talk about it don't realize that molecules themselves are somewhat hypothetical, and that their interactions are more so, and that the biological reactions are even more so.
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.
那么让我们来想一想,拿走一个,2,s,电子所消耗的能量,假设一个是从正一价硼离子中拿走1,另一个是从中性硼原子中拿走。
So let's think about the energy required now to remove a 2 s electron, let's say we're removing it from boron plus 1 versus neutral boron.
这也是很合理的,因为Z就是原子序数,假设原子序数是,那就有3个电子,那我们就希望,性原子有个带3个正电荷的原子核。
So, let's say we have an atomic number of 3, 3 that means we have 3 electrons, so we better hope to get our neutral atom that we have a charge of plus 3in the nucleus.
假设电子需要有一定能量才能环绕核子轨道的原子结构理论。
A theory of atomic structure that assumes an electron orbiting a nucleus can only be at certain energy levels.
现在画分子振动能级,这不一定是这样,我们假设这是双原子分子。
So now I'm going to draw vibrational energy levels inside the molecule. Let's imagine, it wouldn't need to be this, ut let's imagine it's just diatomic molecules.
汤普金斯紧锁双眉,他没想明白在塔顶加速的原子振动和孙女加速变老的假设之间有什么联系。
Mr. Tompkins frowned. He did not see the connection between speed up atomic vibrations at the top of a tower, and the granddaughter's supposed speeded up ageing.
假设你在塔底向上看那些塔上面加速的原子振动。
Suppose you are at the bottom of the tower looking up at those speeded up atomic vibrations occurring at the top.
假设那看似善意性的安排:为何在一无止尽的时间中,原子的随机运动不能创造出这样的结果?
Suppose it looks like a benevolent arrangement: why cannot the random motions of atoms create it, given an infinity of time?
所以说我推测原子的存在是基于,该假设使得我能够解释,所需解释的一些现象。
So, I infer the existence of atoms based on the fact that doing that allows me to explain things that need explaining.
曾经假设,金属中原子的外层电子并不是束缚在个别原子上,这些外电子被称为价电子,因为它们是参与化学键的电子。
It was assumed that, in a metal, the outer atomic electrons, known as the valence electrons since they are the ones which take part in chemical binding.
动态模拟中假设溶质原子之间没有相互作用,得到在不同的外加应力下位错的运动特征和溶质原子的分布状态。
Supposing there is no interaction between solute atoms, the feature of dislocation motion and the distribution of solutes are obtained at different external stresses in the dynamic simulation.
在线性驰豫应变假设下给出了应变超晶格纵向原子间距的几何模型。
A model of linear strain relaxation is proposed to obtain the interatomic longitudinal spacings of the strained superlattice.
主要从三个方面来分析:(1)分析终极的原子性假设的困难及原因;
The analysis includes three aspects: (1) The difficulty and reason of ultimate analysis's atomic hypothesis;
主要从三个方面来分析:(1)分析终极的原子性假设的困难及原因;
The analysis includes three aspects: (1) The difficulty and reason of ultimate analysis's atomic hypothesis;
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