The idea is basically feasible, using small devices that harvest energy from their surroundings and provide their own power supply rather like a solarcalculator.
这个想法基本上是可行的，使用一些能从周围环境获取能量、自给自足的小装置，像太阳能电池板那样。
2
Such solar power is already being used to run all sorts of devices, from calculator to the Hubble Telescope in outer space.
这类太阳能已应用在诸如计算机和哈伯太空望远镜等各种装置中。
3
If you bring a solar powered calculator to a test, the room lights won't work.