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2017-10-04 Science & Technology
Chinese scientists make breakthrough in replacing WiFi with LiFi
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Posted by Fred 2017-10-04 00:00|| || Front Page|| [10325 views ]  Top

#1 We were the first to successfully create it using cost-effective raw materials such as urea with simple processing

As LBJ once said, "Put a little urine on it!"
Posted by Skidmark 2017-10-04 00:27||   2017-10-04 00:27|| Front Page Top

#2 One word: walls.
Posted by Victor Emmanuel Ebbaise1246 2017-10-04 04:26||   2017-10-04 04:26|| Front Page Top

#3 
Posted by Bright Pebbles 2017-10-04 09:56||   2017-10-04 09:56|| Front Page Top

#4 Did they steal this technology from us too?
Posted by Raj 2017-10-04 12:02||   2017-10-04 12:02|| Front Page Top

#5 Be another 30yrs. before the average person in the US will be a to is it regularly.
Posted by Chris 2017-10-04 13:24||   2017-10-04 13:24|| Front Page Top

#6 uses visible light from LED bulbs
I think IBM started using multi-freq LED lasers @'94. Yes indeedy, optical is faster than RF. 'Speed-of-Light' and all that.

The new nanomaterial that Qu's team has developed can emit all light visible to the human eye
This is just poor spectrum management, unless it is strategically linked to other developments like printed mylar displays you can rollup and put in your pocket, or optical camo.
Posted by Skidmark 2017-10-04 13:34||   2017-10-04 13:34|| Front Page Top

#7 Look up the speed of RF and get back to me.
Posted by Hellfish 2017-10-04 13:46||   2017-10-04 13:46|| Front Page Top

#8 An application looking for a proper need?
If you need Line-Of-Sight with light then just use a cable. The advantage of using RF is the signal going around corners and through things.
Posted by magpie 2017-10-04 14:05||   2017-10-04 14:05|| Front Page Top

#9 OOOhh, Hellspawn.
As last I can recall radio frequencies fall to the left of the visible frequencies on the energy spectrum. Longer wavelength means more 'distance' between bandpass detection peaks (-1, 0, +1). Visible spectrum has shorter wavelengths so less distance from peak-to-peak. Less distance means more peak-to-peak detections means more data within the same interval of 'time', ergo faster within this context.
How'd I do?
Wait, let me look it up!
Posted by Skidmark 2017-10-04 17:17||   2017-10-04 17:17|| Front Page Top

#10 Magpie, the trick with visual spectrum fluorescing bits is there needn't be a signal decoder in the display receiver. Remember WYSIWYG?

3D, any thoughts?
Fluorescence doesn't promise me enough energy to overcome fiber attrition for any distance.
Posted by Skidmark 2017-10-04 20:31||   2017-10-04 20:31|| Front Page Top

#11 Skidmark is correct, although for all practical purpose, it really doesn't make much difference.

:)
Posted by Seeking cure for ignorance 2017-10-04 21:10||   2017-10-04 21:10|| Front Page Top

23:56 Skidmark
23:51 Skidmark
23:48 Skidmark
23:35 Skidmark
23:31 newc
23:12 49 Pan
23:10 49 Pan
22:54 newc
22:50 newc
22:46 trailing wife
22:45 newc
22:44 trailing wife
22:40 swksvolFF
22:39 Joluth Thusoting4606
22:30 trailing wife
22:22 swksvolFF
22:21 swksvolFF
22:19 swksvolFF
21:46 Besoeker
21:33 si vis pacem, para bellum
21:27 newc
21:25 newc
21:10 Seeking cure for ignorance
21:07 phil_b









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