Electronic eraser in japan

9 years ago by krej65 · 2537 Likes · 9 comments · Popular

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vanilie · 9 years ago · FIRST

Cool but instead of using a lot of electricity why not just use a sponge?

adrianpeterson · 9 years ago

Because electricity exists

deleted · 9 years ago

I grew up in Asia and it's a pain in the ass to scrub the blackboards (the teachers make the kids do it)

kayrey · 9 years ago

Some schools in America make/let the students clean the blackboards too. I never thought it was that big a deal.

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nerdfighter · 9 years ago

Its like those magnetic drawing children's toy thingies
http://goo.gl/AD02eC

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dark_lord · 9 years ago

Because using a sponge takes much more effort than building that machine. Or do sponges cost a fortune in Japan?

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guest · 9 years ago

They can afford that expensive looking eraser, but they have a chalk board? Like really? You coulda gotten a white board so you wouldn't have to hear all those crappy skratch marks

dpearce613 · 9 years ago

WRONG. This device records everything written on the board while it erases it, then students can look at the images online later. We had lots of them at my school.

nerdfighter · 9 years ago

That's so cool!!!

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Electronic eraser in japan

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