If the gyroscopes weren t so spherical , their spin axes would wobble even without the effects of relativity 如果回转仪不是如此浑圆,其转轴在不受相对论影响下亦会摆动。
Klinostat ( clinostat ) an apparatus used in tropism experiments to remove the unidirectional influence of a stimulus on a plant organ 回转仪(器) :在向性实验中用来消除植物器官上的刺激产生的单向性影响的一种仪器。
They developed a " drag free " satellite that could brush against the outer layers of earth s atmosphere without disturbing the gyros 他们研发出无阻力卫星,让卫星虽然不断和地球大气外层发生摩擦亦不会影响到回转仪。
The idea behind the experiment is simple : put a spinning gyroscope into orbit around the earth , with the spin axis pointed toward some distant star as a fixed reference point 实验背后的原理十分简单:将转动的回转仪放在环绕地球的轨道,转轴指向远处星体,作为固定基准点。
They figured out how to keep earth s penetrating magnetic field out of the spacecraft . and they concocted a device to measure the spin of a gyro without touching the gyro 除此之外,他们亦想出怎样使地球渗透性的磁场不会进入飞船之内,以及发明一种无须要触及回转仪而能量度其转动的仪器。
They can also " launch " a multi - stage rocket in slow motion and trace the successful development of launch vehicles and their payloads through videodisc programmes 观众可坐在回转椅上,体验和学习回转仪的原理此外,观众可发射一枚多级式火箭。播放的影碟节目,则介绍运载火箭的成功发展。
According to calculations , the twisted space - time around earth should cause the axes of the gyros to drift merely 0 . 041 arcseconds over a year . an arcsecond is 1 3600th of a degree 根据运算,地球周围扭曲的时空只会引致回转仪转轴每年漂移0 . 041角秒,一角秒为1度的3600分之一,可见程度之小。
The gyroscope accembly is placed inside lead bags , which in turn are placed inside a large cryogenic container called a " dewar " holding about 1 , 5000 litres of liquid helium 科学家把回转仪系统装在铅袋内,再放入一个低温真空瓶中。真空瓶盛载著约1 , 500公升的液态氮,把铅袋冷冻至差不多摄氏零下271度。
But if space is twisted , the direction of the gyroscope s axis should drift over time . by noting this change in direction relative to the star , the twists of space - time could be measured 但假如时空给扭曲了,回转仪转轴的方向便会随时间移动,换句话说,只要找出转轴方向漂离了星体有多远,便可量度出时空的扭曲程度。
The two - wheeled device uses a complex array of gyroscopes and computers to mimic the human body ' s sense of balance , according to segway employees who demonstrated the scooter monday at a park in midtown new york city 据周一在纽约市中城区的一个公园内演示该车的公司员工说,这种两轮的设备是用一组复杂的回转仪加上电脑来模拟人体的平衡感。