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-   -   Student Invention May Significantly Extend Mobile Device Battery Life (https://talk.maemo.org/showthread.php?t=25698)

YoDude 2008-12-21 21:43

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 
Quote:

Originally Posted by tso (Post 251126)
wifi can eat a lot of juice, if allowed to...

Again, not the juice drawn by the radio itself but the power used by the antenna...

A cell phones transmit power is between 3/4 to a full watt. WiFi typically is 100mw or less and I believe BT is as low as 1 milliwatt.

So... I'm thinkin' our tablets consume a little more than about 1/10th what a cell phone consumes while transmitting.

allnameswereout 2008-12-21 21:50

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 
Try CoralCDN. Mirrordot, visit later, look for mirrors in replies, or avoid the site like the plague.

allnameswereout 2008-12-21 21:52

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 
Quote:

Originally Posted by YoDude (Post 251560)
So... I'm thinkin' our tablets consume a little more than about 1/10th what a cell phone consumes while transmitting.

Upload? Who uploads a lot on a device like this. My cell phone, with same battery as N810, and in use stays on for 2 days. If my N810 can do that with that battery I'd jump high in the air. It can't.

Texrat 2008-12-22 03:40

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 
Quote:

Originally Posted by tso (Post 251542)
is there not some kind of mirroring service built into slashdot these days?

Ahem:

"Slashdot does not mirror the sites it links to on its own servers, nor does it endorse a third party solution. Mirroring of content may constitute a breach of copyright and, in many cases, cause ad revenue to be lost for the targeted site. The questionable legality of the practice is one of the primary reasons that Slashdot has not implemented mirroring."

http://en.wikipedia.org/wiki/Slashdotted

YoDude 2008-12-22 12:51

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 
Quote:

Originally Posted by allnameswereout (Post 251565)
Upload? Who uploads a lot on a device like this. My cell phone, with same battery as N810, and in use stays on for 2 days. If my N810 can do that with that battery I'd jump high in the air. It can't.

That's what I'm saying...

A closer read of the kids paper (if I can find a link I will post it) shows that the savings would only come from the power consumed by the dang antenna.

Perhaps this is why it has not been picked up by more digs or whatnot. Somebody must have finally read the thing. :)

allnameswereout 2008-12-22 15:48

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 
Slashdot sucks for science partly because their editors aren't able to summarize well, and because the readership is not provoked into reading further into the subject. Try http://www.physorg.com and their (well defined) sub-categories. Got RSS too.

The quality of the posts is low as well. There used to be +5 posts which were informative, containing links and such. Not anymore. Its more chit-chat now.

While mirroring is copyright infringement, summarizing is not and caching is note either. At least not in my jurisdiction. Thats also why the local mafiaa doesn't sue owners of Usenet servers.

I wish I had that website about the American living in Africa setting up embedded WiFi APs. It was a very interesting read, and he used open source for this purpose as well.


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