Yes, flicking the light on and off fast does waste power. Turn the light on only when you need the light to see something in that room. Turn the light off when you leave the room to conserve power.
They sure can. You might need a nail and a penny, but a potato can power a lightbulb.
180 per light your welcome
how can we say light does not need light to travel
you need units
Lemons and other citrus fruits such as strawberries and I think but not sure kiwi.
you couldnt, you'd need 1.21 jigga watts to send you back to the future
2
The acidic nature of the lemon juice creates a chemical reaction with lead or another metal inserted into it which causes current to flow in the wire hooked to a low power lamp. The lemon juice is the "electrolyte". The chemical reaction is exactly the same as a simple battery in a flashlight. Like anything else though, it won't last forever..
5
It would be possible but you would need to build one involving many many lemons in series (to get up to 12 volts) and then many banks of these in parallel (to deliver the power).
you cant make a potato light up but...you can make a light bulb light up with potato power.all you need is wire electric tape two potato's or lemons set it up and your good =)
Lemons
Light can't transmit power, but can be transformed to electricity to run motors that converts to any kind of power. You need a light source and solar panel.
How far a reflector can be seen depends on the power of the light shining at it. So there's no set answer.
Yes, flicking the light on and off fast does waste power. Turn the light on only when you need the light to see something in that room. Turn the light off when you leave the room to conserve power.
you need to fertilise them.