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What else can I help you with?
How do you detect blood on a window frame?
Use a UV light. The blood stain will appear black.
How do astronomers use evidence to detect black holes?
Astronomers use evidence such as the behavior of nearby stars and gas, as well as the bending of light around invisible objects, to detect the presence of black holes in space.
How can you use a spectrometer to detect black holes?
You can't use spectrometers to detect black holes. Telescopes are the only way to detect them.
How does the swab drug test work and how far back can it detect drug use?
it will only detect MAX 72 hrs
Can test detect drug use for years past?
No, a drug test will give results for drug use in the present.
What is a syliva drug test?
it is a drug test by mouth. they swab the mouth to detect drug use in the last 24 hours.
Can you use black light to check clothing for semen stains?
yes if it's there Do you need anything else besides a black light?
Does the SCRAM Bracelet detect marijuana use?
No, the SCRAM bracelet is designed to detect alcohol consumption through skin sweat. It does not detect drug use, including marijuana.
Can scram bracelets detect drug?
"Scram bracelets" are typically used to monitor alcohol consumption by measuring alcohol sweat levels from the skin. They are not designed to detect drug use.
Do saliva drug tests detect drugs in your system for a longer period of time?
No, not compared to urine drug tests. Normally saliva tests can detect usage for max. 10-12 days. But detection period will depends on drug and amount you use, last time you use it ,etc..
Can you tell if you have lice by using a black light?
I just read a medical website that says you can see the live nits under a black light. The pediatrician that wrote the article said they use it at their office to detect them. But I'm not sure about live lice.
How do you get a robot to follow a black line rcx 1.0.?
I actually use NXT but I imagine you use the light sensor to detect when there isn't a black line under it. Then steer to the left a bit and if the line isn't found, steer to the right until it's found.
