Yes it is possible to make an acid battery using the acid in a lemon. (you would need allot of lemon batteries to light a flashlight bulb though - try using a diode light bulb)
For more information on how to do this look in the link I will place below.
Chat with our AI personalities
flashlight is always lighting for people in dark. There are other more applications from differrent color light, such as imalent flashlight, spot light is for daily use, UV light can check ID card or ticket, red light can be used warning in traffic.
A fire and a flashlight are able to add light to the dark to help people see objects.
it would be heat to light or chemical to electrical to light
it made them see if there was no light or electricity.
The cop shined his flashlight so that the beam of light hit the criminal's face.