bravo22

24 ms·

211.
by bravo22 11y ago
They own Segway.
212.
by bravo22 11y ago
"The gun was confiscated when officers searched his trailer on Nov. 5, 2005, and the bullet was found in the garage in March 2006, Mr. Kratz said. 'If they planted it, how did they get a bullet that was shot from Avery’s gun befor
213.
by bravo22 11y ago
LoRa has long range but throughputs is extremely low. It is useful for some applications but not for all.
214.
by bravo22 11y ago
Generally speaking laws supersede agreements, not the other way around. That's their whole purpose. Certain things can't be done and certain rights can't be forefit if specifically disallowed by laws
215.
by bravo22 11y ago
a customized pipeline for a specific solution will always outperform a CPU, which is designed to be pretty good at a lot of things but not great at one single thing. As for price... that depends on how much they want to charge for it ;)
216.
by bravo22 11y ago
... so why not do it over WiFi? You use less power/bit and you get the data delivered to where it matters, local network. LoRa only makes sense (and I've seen it used) in large infrastructure type uses like sensors that monitor ro
217.
by bravo22 11y ago
Compromise is you'll get a few bits to 1kbps at best over a few Km of range. It would work for some applications but not for all of them.
218.
by bravo22 11y ago
For employment they are unenforceable but this is a different situation. It would be part of an investment contract and it is very much enforceable.
219.
by bravo22 11y ago
I have to disagree. Those core execute the codes from their local SRAM which can only be written to under very specific conditions. You can't arbitrarily write to their SRAMs. An SOC has various bus arbitrators that are built into hard
220.
by bravo22 11y ago
I don't know which chip OP is using but no you can't. It is usually a small CPU which is part of the GPU video decoder that is used as the 'boot' processor. It usually executes first level ROM code and fetches the first
221.
by bravo22 11y ago
Offline authentication was included for reasons you state but banks and terminals are supposed to limit it to small transactions, i.e buying a cup of coffee. For larger ones you wait and retry for online transaction before you let the custo
222.
by bravo22 11y ago
Sorry. I'm not sure I understand your comment. Are you saying it is the bank's fault or it isn't? EDIT: Thanks kbenson for clarification. The banks did lobby hard to be able to shift the liability to customer when PIN is used
223.
by bravo22 11y ago
They signed transaction would indeed fix this issue but it was ignored by the bank (to their detriment) for other reasons. The implementation is actually pretty decent. It doesn't require key management the way you describe it. Banks
224.
by bravo22 11y ago
In this case the fault lies with the bank. The chip can authenticate the transaction and also optionally cryptographically sign it as verified. The bank should check the last step but most/some don't because a lot of the first wav
225.
by bravo22 11y ago
I didn't. He is talking about the footprint of the fuel (electricity vs gasoline). The report addresses that as well. It looks at OVERALL footprint of the three different types, and includes upfront cost (i.e. production which includes
226.
by bravo22 11y ago
Minivans are most popular is North America. The data cited is for US sales but my original argument was worldwide sales.
227.
by bravo22 11y ago
You are way, way off on your calculations. The Cyclone IV "MIPS" you are talking about comes from the built-in ARM cores so you're comparing ASIC to ASIC here. An FPGA vs ASIC, FPGA will lose every time. It is a simple matter
228.
by bravo22 11y ago
The linked report compares BEVs with ICE and Hybrid. Hybrid beats both because of the smaller battery. BEVs have a very large upfront footprint due to the battery that needs to be paid off overtime by driving from a renewable source. Howeve
229.
by bravo22 11y ago
Please see my other response in this thread: https://news.ycombinator.com/item?id=9905275
230.
by bravo22 11y ago
The carbon footprint of producing the battery, even not considering the chemicals, is very large. So much so that you'd have to drive it on many years from a full-renewable source for you to break even with a regular car[1]. Tesla, sad
231.
by bravo22 11y ago
Maybe that is sold? Per this [1] article from May their delivery per quarter is about 10K units, so about 40K/yr. I'll update my reply. http://www.forbes.com/sites/greatspeculations/2015/05/12&#
232.
by bravo22 11y ago
In the US, and Minivans aren't the most popular type of cars. Here is just BMW sales in 2014: http://www.bmwgroup.com/e/0_0_www_bmwgroup_com/investor_rela...
233.
by bravo22 11y ago
The batteries in a Tesla aren't very green and sadly they are quite large. Big automakers think in volumes of millions of cars, Tesla delivers about 25K (EDIT: looks like 40K projected for this year[1]) cars a year. http://w
234.
by bravo22 11y ago
FPGA eats a ton of power. You won't see it anything consumer. It is already used in Server/Pro applications.
235.
by bravo22 11y ago
That only works for things like on-board SRAM
236.
by bravo22 11y ago
Almost. The biggest hurdle in SE is "provisioning", i.e. how do you get your master keys in there. This is why Google needed to rely on the carriers for authentication. They already have a full infrastructure for that in place. Th
237.
by bravo22 11y ago
Correct. The carrier controls that SE, in this case Google is making it easier for people to work with their own SE by giving Android ability to talk to it. You can/could do the same thing with carrier's SIM actually. All SEs run
238.
by bravo22 11y ago
Such a thing, more or less, exists today. It is called Secure Element[1]. It comes in microSD + NFC or embedded as part of SmartCard/SIM card. Incidentally this "secure element" is why GooglePay was/is dependant on carri
239.
by bravo22 11y ago
Excited about Weave. Not sure about Brillo. It is unnecessary. Most IoT things are low power Cortex-M devices that need to do very little and are very low power consumption. You don't have SDRAM, or a fancy OS and don't need it. T
240.
by bravo22 11y ago
Dug up some details on the R8 used in the CHIP. It doesn't look like it'll have much juice. There are comparable chips out there (made by Atmel for example) in terms of speed/performance. Single Cortex-A8 (don't disclose

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