Can blood be seen with UV light?

Answer Yes, blood can easily be seen under ultraviolet (UV) light. Crime scene investigators will use UV light to locate blood obscured by fresh layers of paint, or blood that blends in with dark or red s... Read More »

Top Q&A For: Can blood be seen with UV light

Can viral particles be seen with a light microscope?

Yes, some virus particles can be seen under a light microscope. The largest known virus is the mimivirus, which is more than 400 nanometers in diameter. A light microscope can distinguish objects a... Read More »

What is the wavelength of the longest wavelength light that can be seen with the human eye?

The longest wavelength of light visible to the human eye is red and is between 620 to 780 nanometers in length. The shortest wavelength of light visible to the human eye is violet and is between 40... Read More »

Seen blood in stools?

Probably just a small tear like you say but if the problem persists seek help from your local GP because that's what they're there for!

Can an LED light be seen from space?

An LED light cannot be seen from space. Astronauts can seen extremely large landmarks, such as pyramids in Egypt, the Great Wall of China, the lights of Las Vegas and major landforms.References:Nas... Read More »