They suggest that any alien civilisation worth its salt would alight not on the photons of the electromagnetic spectrum-whether optical or radio-frequency-to send messages to other solar systems.
他们指出，任何有头脑的外星文明都不会发射电磁波谱中的光子——无论是可见光波段还是射频波段——向另一个太阳系传送信息。
The method can be applied to other large aperture optical systems.
所使用的分析方法可以应用于其他大口径光学系统。
They are also used in many other leading edge technologies such as optical sighting systems and laser range finding.
他们还用在其他许多领先技术，如光学瞄准系统和激光测距。
应用推荐