Monday May 21 2012
Science of Credit Cards

Why does putting a plastic bag over a credit card make it scan better?


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Very cool

I just had to do this the other day and my daughter asked me why it worked. I could not tell her but now she knows thanks to your video.

Thanks!

credit card

It's interesting to see the science behind something that is seen as an everyday tool. I will think differently each time I use a card such as that, especially when they don't work.

Thank you for sharing this with us.

cool

cool

this

this is raely awsom i fond it verry cool

plastic bag trick

And now I know why that works ~ thanks.

WOW!

I thought that was super cool how if you put a plastic bag over your card and swipe it it will work again!

Always wondered!!

Thanks for sharing!! Just found this site and am loving it!!!!!

FASCINATING!!!

FASCINATING!!!

cool!

that was cool!

credit card

is there a magnet on every credit card?

magnets on cards

yes there is a magnet on every credit card.

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