| 1. | Study of the gravitational energy in neutron stars
中子星内引力能的研究 |
| 2. | On the way down , the ball gains kinetic energy at the expense of gravitational energy
球往下掉时，重力位能又转换回动能。 |
| 3. | Gravitational energy - momentum and the hamiltonian formulation of the teleparallel gravity
平移引力规范理论中的能量动量及其哈密顿表述 |
| 4. | If you throw a ball into the air , it rises to a higher altitude but decelerates : it gains gravitational energy at the expense of kinetic energy
如果把球丢到空中，高度增加，但速度减低了：动能的损失转变为重力位能。 |
| 5. | Early on , dense iron sank out of the magma oceans to form the metallic core , liberating enough gravitational energy to melt the entire planet
更早期的时候，较重的铁自岩浆海中析出下沉，渐渐形成了金属成份的地核，下沉时释放出的重力位能足以把整个地球再次熔融。 |
| 6. | Most of the energy generated in the protostar stage comes from the gravitational energy of the cloud , just like a ball will drop with increasing speed from your hand if you release it
在原恒星阶段，星体的能量主要来自星际云引力塌缩时所释放的位能，犹如树上的苹果会向下掉一样。 |
| 7. | Some typical energy sources like chemical energy , gravitational energy , etc . are proved to be impossible because the energy provided is not enough to last for very long
有人提出太阳的能源来自化学能重力能等等，由于这些能源皆不可能维持太久，终被科学界一一否定。真正的答案是一种称为 |
