What is the principle of an infrared detector?

3 answer

if there is a fire at a building that is holding a blood drive, the blood drive bus is parked in the fire lane

4 answer

Whether an IC card can be used in two access control systems

3 answer

What is the main safety rule???? (plzzzz helpppp)?

4 answer

How much personality reflective material of a car

3 answer

Why does usa complain about the economy, but preserve the right of an employer to fire people for no reason?

3 answer

Why can't we attach lightning rods to huge underground capacitors?

2 answer

How likely can you survive if a plane is crashing?

5 answer

Should i set myself on fire for 20 seconds with a fire suit at 2000 degrease and burn 1000 calories?

2 answer

The problem of monitoring by centralized power supply

3 answer

Physics - please help me?

2 answer

Monitor the camera 1/3 and 1/4 of the difference there is nothing different CCD what is it

3 answer

Should I call the cops over neighbors dogs?

3 answer

How low should my truck be to be considers a lowrider?

3 answer

A material which is brightly visible in daylight and glows significantly in night time?

2 answer

what are the parts of a lightning rod and their functions?

5 answer

physics problem about thin film interference?

3 answer

How do the schools have fire alarm drills without out the trucks coming everytime the fire alarm sounded?

5 answer

The other day my 7 year old daughter had &post 3 surface resin based cmps&on 2 teeth. What is this and cost?

2 answer

What is an offline access control system

3 answer

In referance to the metel detector question; what about the sound that they make,?

3 answer

How can i make a fire extinguisher???

2 answer

how to change fire alarm?

2 answer

Making Soaps?

5 answer

My car shakes, instead of bouncing up and down on bumps. I think it has bad suspension.?

3 answer

Curling help plz!?

2 answer

what is the stuff you can buy to stop a pin size leak in a copper pipe,it is a type of putty?

3 answer

Helping th people, affected by the fire in California.?

2 answer

How is the power environment monitoring system connected with the access control system and the monitoring system?

3 answer

audacity help? im trying to lock in separate music parts together so they wont move ?

3 answer