题目阅读下列短文,从所给的四个选项中,选出最佳答案 Scientists had long dreamt of splitting the atom( 原子 ) and let out some of its huge quantity of energy . They didn't find out how to do it until the 1940s . Uranium is one of the matters whose atoms can be...
Susan doesn't like to put something sugar in the office. Orientation for new employers is very important in most companies. Now work in groups. And one acts like it's a director while other actors, it's a super worth and clicks. Work together to make a list of the items to be inclu...
Nuclear fusion is what keeps the Sun and all other stars shining in the sky. The Sun is a glowing ball of mainly hydrogen and plasma, which creates energy when the hydrogen atoms crash into each other and release energetic light and helium as a byproduct. To...
While unlike other common radioactive particles, tritium replaces the hydrogen atoms in water molecules, allowing it to pass unaffected through normal radiation filters. As a result, according to Dr. Brendan Kennedy, a chemistry professor at the University of Sydney, it is "essentially impossible" ...
Its strong basicity was attributed to the presence of the electron-rich stoppers that, due to their steric hindrance, force the lone pairs of the crown ether oxygen atoms and that of the secondary amine nitrogen atom of the axle to stay in close proximity, hugely destabilizing the rotaxane ...
At the atomic level different rules of physics apply to those that we observe around us. These quantum rules determine how atoms interact with each other, and this new understanding will enable us to use quantum rules for incredibly advanced and rapid calculations that are far beyond the abi...
The pupils were divided into pairs or small groups and had access to a whole box with balls of different colors (symbolizing atoms) and sticks of different lengths (symbolizing the bonds between the atoms). Figure 6. A box of balls and sticks. The different colors of the balls represent ...
Shohini Gose quantum physicist says in her TED talk that quantum physics describes the behaviour of atoms and fundamental particles, like electrons or photons. A quantum computer operates by controlling the behaviour of these particles, which is very different from the way our traditional computers wo...
At this higher temperature, the higher kinetic energy of the atoms allows for a faster movement and a faster rearrangement of the otherwise sluggish molecules. Interestingly, while the secondary structure of the protein was retained, the polymer chains moved more toward encompassing the helix (Fig....
In Ref.15, it is proposed from nuclear physics that neutrinos and anti-neutrino pair at low energies can be formed during inelastic collisions of particles (electrons, ions, neutral atoms) during their thermal motion. Temperatures known to be produced in cavitation processes may exceed the calculat...