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cross pond high tech
light views on high tech in both Europe and US
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Anonymous People In San Francisco Are Leaving Insane Fliers On Tesla Cars, Claiming To Expose The 'Truth' About The Company

Anonymous People In San Francisco Are Leaving Insane Fliers On Tesla Cars, Claiming To Expose The 'Truth' About The Company | cross pond high tech | Scoop.it

People are apparently leaving fliers on Tesla cars in San Francisco, warning drivers that owning a Tesla means they are involved in "organized crime."

The flier accuses Tesla of "manipulating Congress" and questions the safety of lithium ion batteries. 

"Lithium ion batteries blow up if they get wet or bumped," the flier reads. "They have already burned planes, cars, homes & children. There have been tens of thousands of lithium ion battery fires & explosions. Tesla's (sic) have over 7000 "non-automotive designed" batteries in each car, that means over 7000 chances of having a catastrophic fire."

The flier also speculates that Google is a "silent partner" of Tesla's.

Philippe J DEWOST's insight:

Weird. Detroit driven ?

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Hyperloop unveiled

Hyperloop unveiled | cross pond high tech | Scoop.it
Here is the 57 pages PDF memo released by Elon Musk on his much awaited Hyperloop project
Philippe J DEWOST's insight:
(Hype)Rloop ? Need to read the memo before drawing any conclusion, but thanks to Elon Musk to bring some forward looks in the middle of a depleted european summer.
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Philippe J DEWOST's comment, August 13, 2013 6:03 AM
Looks like the PDF link is not always working. Here is another one: http://www.spacex.com/sites/spacex/files/hyperloop_alpha-20130812.pdf
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The Apple Tesla Connection: Fun and Reason With Numbers

The Apple Tesla Connection: Fun and Reason With Numbers | cross pond high tech | Scoop.it

For Apple devices the computation is more complicated — and more speculative — because the company publicizes battery capacity (in watt-hours) rather than weight. But after some digging around, I found the weight information for an iPhone 4S on the iFixit site: 26 grams. From there, I estimated that the weight of the larger iPhone 5S battery is 30 grams.

I reasoned that the weight/capacity ratio is probably the same for all Apple batteries, so if a 26g iPhone battery provides 5.25 watt-hrs, the iPad Air battery that yields 32.4 watt-hrs must weigh approximately 160g. Sparing you the details of the mix of iPad minis and the approximations for the various Macs, we end up with these numbers for 2014 (I’m deliberately omitting the iPod):

100M iPads @ 130g = 13,000 tons 
200M iPhones @ 30g = 6,000 tons 
20M Macs @ 250g = 5,000 tons 
Total Apple batteries = 24,000 metric tons

It’s a rough estimate, but close enough for today’s purpose: Apple and Tesla need about the same tonnage of batteries this year.

 

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