They use power from an internal battery when solar energy is not available.
Some people use solar energy to power lights, there are also some solar powered calculators
There are some companies like Texas Industries that make solar powered calculators, but other than that I don't really know.
most calculators are powered by solar energy but some are powered by batteries
There are no listings at Target for green lamps that are solar powered. There are listings for decorative outdoor lights that are solar powered, and some of these come in green.
Some examples of solar energy include solar panels on rooftops or in solar farms that convert sunlight into electricity, solar water heaters that use sunlight to heat water for residential or commercial use, and small-scale solar-powered gadgets like calculators or outdoor lights.
Almost no one as there are no solar powered cars being produced and sold. There have been some prototypes, and some cars use solar cells to help charge the batteries but no solar powered cars are on sale as of yet.
Most pocket calculators run on batteries because it is much more convenient to use in multiple places. However, some older calculators tend to run on solar power.
Depens on how many hours of sun it gets, on how much you want to drive it, and for how long/fast you want it to go. A solar powered speed boat - no. A solar powered commercial ferry - no. A solar powered dinghy for some casual fishing - sure.
No, not all G-Shock watches are solar-powered. Some models are equipped with a solar-powered battery system, known as Tough Solar, but there are also G-Shock models that rely on standard batteries or rechargeable batteries.
you can have a solar powered keyboard
Advantages :cars,calculators,even home things
Yes, some newer ones are.