Eating or drinking something that's contaminated with germs can cause food poisoning. Often, people get food poisoning from animal-based foods â like meat, poultry, eggs, dairy products, and seafood. But unwashed fruits, vegetables, and other raw foods also can get contaminated and make someone sick.
An LDR or photoresistor is made any semiconductor material with a high resistance. It has a high resistance because there are very few electrons that are free and able to move-the vast majority of the electrons are locked into the crystal lattice and unable to move. photoresistor or light dependent resistor is a component that is sensitive to light. When light falls upon it then the resistance changes. Values of the resistance of the LDR may change over many orders of magnitude the value of the resistance falling as the level of light increases.
Following is some helpful information on UV rays and alternatives to the problem. Light Emitting Diodes. LEDs (Light Emitting Diodes) do not generate UV radiation because they are lit through a process which involves electrical current flowing to semiconductors.Unlike incandescent and CFL bulbs, LED bulbs do not require a filament or gasses which use heat as the source of light.While there is a slight amount of heat that is generated, it is not in the infrared or ultraviolet portions of the light spectrum.any people do not have a choice as to whether or not they will be exposed to UV radiation as a result of fluorescent lighting. In some cases, these lights are used at their place of work. There are steps a person can take to help minimize the exposure they received to UV radiation.