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like metal detector device available for other substance to be detected?

metal detector has a limitation and plastic subtance are not exposed by them, for over all detection,one devise , at check posts, to be installed for better security

I have just bought my kids a National Geographic metal detector. Anyone else got one?

It was cheap, and I know that the more you pay for one the better they are. Are they likely to find anything with it, and if so what is the range and type of things it is likely to detect? I don’t want them getting disheartened. Thanks for any replies.

i was metal detecting and found a…..?

I was metal detecting in my front yard and found what looks like a old shot gun shell on it , it say
U.M.C.CO
NO 12
NEW CLUB
could it be a shotgun shell?
any information is appreciated
@Davez Kochukov. no one in my family we have a 12 gauge but it hasn’t ever been fired on my property. i’m hoping [...]

Please tell me what this asian inscription means?

My dad found this small asian bowl while metal detecting today. It’s brass, and was found in old soil about a foot underground. We aren’t sure how old it is, only that it possibly was used to burn Opium or incense.
http://flickr.com/photos/25932469@N05/3112224056/in/photostream/
Please try to decode this. Thanks!
Have a great day.

How do you get cell phones through scanners?

You know the scanners you walk through that beep if it detects metal or something like that.
We have them at school and I need my cell phone during the day, not to text friends but for important stuff.

Dye-penetrant testing, detecting cracks in metals, non-destructive test material/DP test?

Member since: May 28, 2007
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Ali Asharaf Khan
S Dye-penetrant testing, detecting cracks in metals, non-destructive test material/DP test?
I would request to be known what is non-destructive test material, it is also called DP test. Is Dye penetrant testing the non destructive test material and why is [...]

How to get my cell phone thru the metal detector .. ?

How to get my cell phone thru the metal detector .. ?
i wan’t to know how to get my iPhone past the metal detector, people say that if i put my phone in my boxer brief pockets on my boxers, that it won’t go off. but, if i wear like shorts. then put the phone [...]

can metal detectors detect one-time use cameras?

like kodak disposable cameras. like at the house of blues anaheim.

what is a good quality but rather inexpensive metal detector for a beginner?

I would be most interested in finding old coins, jewerly and historical relics. i guess im mainly looking for anything other than pop tabs haha so an item specific detector wouldnt be necessarily one that detects most everything would be good. I wouldnt mind if it was around 0 but thats pretty much all im [...]

what is that device called that is using by the airport securities to detect metal or weapon? magnatic sth?