Tag Archives: Plastic

is there a metal detector sensitive enough to pick up metal screws in a pair of plastic prescription glasses?

I lost my favorite pair of prescription shades in tall grass out here in the country and am desperate to find them. I am thinking about trying to detect the screws and wondered if there are metal detectors sensitive enough.

Isn’t using a method of physical obersvations…?

to find non-physical things just about as useful as using a metal detector to find a plastic jug.

I know the scientific method can find evidences/non-evidences of spiritual stories. But can it really find what’s at the heart of those stories? Can it really find deity, or revelation, or spiritual beings? Or are those things the “plastic” to a metal detector?

If it can be used, please share how.

If it can’t, are there any other viable ways for us to gain knowledge about spiritual things?

thanks

Plastic guns with wooden bullets and metal detectors?

Where can I purchase a plastic gun. I’ve read the KGB used these back in the day with bullets made of plastic, wood or clay to avoid detection?

Plastic guns with wooden bullets and metal detectors?

Where can I purchase a plastic gun. I’ve read the KGB used these back in the day with bullets made of plastic, wood or clay to avoid detection?

PHYSICS QUESTION POR FAVOR?? A new antiterrorist technique detects the differences in electromagnetic waves…

A new antiterrorist technique detects the differences in electromagnetic waves emitted by humans and by weapons made of metal, plastic, or ceramic. One possible range of wavelengths used with this technique is from 2-5 mm. Calculate the associated range of frequencies.