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Comment Re:GPS is easy to jam (Score 1) 83

GPS receivers can be made much harder to jam. With directional antennae, GPS receivers can nullify gain in the direction of jammers and amplify gain in the direction of known GPS satellites. When there are typically many more GPS satellites than required for position and velocity sensing, it would be difficult to place jammers in positions to jam enough signals at once to make a GPS receiver stop working.

There are also GNSS chipsets that receive not only GPS, but also GLONASS, BeiDou, QZSS, and Galileo, and some of these chipsets also receive alternative frequencies transmitted from these satellites, such as the GPS L1 & L5 signals.

Comment Come on, this is a TEXAS judgement (Score 0) 231

In Texas, there's zero chance the 7 billion punitive damages will survive appeal. Power companies there must have killed more than a few Texas grandmothers by freezing them in winter or boiling them in summer, and the Texas supreme court surely won't let a cable company that's 90% responsible for knifing one single grandmother pay more than year's profits to her family.

That would just be heartlessly cruel to a profit-making enterprise, almost like cutting out the company's heart with a big knife.

Comment Re:Not going to save a dime (Score 1) 159

The video on the ConnecDER site shows a solar panel worker pulling the meter off the box and installing the device, not a power company worker. The power company only has to show up to put their stamped seal back on the meter. There's only a few states where this device is accepted at all, though, it'll be a slow slog to get this device approved in 48-50 states.

Here in the California Bay Area, there's huge numbers of Zinsco and Federal Pacific electrical panels that have been recalled for major safety problems decades ago, and local municipalities stand in the way of getting them replaced, as replacement requires the houses or apartments get full rewiring to current codes. There's more social benefit (juice!) to be had in enabling unsafe electrical panels to be replaced more efficiently than the half-hour of worker savings the ConnecDER promises to provide. Siemens, as a supplier of main electrical panels, would benefit from that as well.

Comment How is CAFE computed? (Score 1) 272

CAFE standards are a production-weighted average of MPG ratings, and as such, drastically underestimates the effect of low-mileage cars. Consider, for example, if 80% of vehicles have an MPG of 12.5, and 20% have an MPG of 150. (A model 3 Tesla gets a 142 MPGe rating.) The CAFE rating would be 40 MPG.

But if you drive each vehicle 100 miles, it would take 8 gallons for each 12.5 MPG vehicle, and 0.67 gallon for each 150 MPG vehicle, using an average of 6.53 gallons per vehicle. That's an average of 15.3 MPG.

Comment Re:Uncompelling (Score 1) 170

Many of our legion aspire to be a nail that sticks up high enough to deserve the hammer. Personally, I'm not driving to work at the moment.

Arguably, later versions may have a greater attack surface and a greater prevalence, a characteristic attract attack efforts, but with no updates, eventually, exploits become known that also apply to earlier versions. Otherwise, perhaps using a old phone just makes you look like an poor schlub, an uninteresting target, lending you some tiny degree of security. But don't put your head up!

Comment Re:What exactly is this program? (Score 3, Informative) 32

AFAIK, the distinction is that instead of the seller having control of the price the item is offered for, AZ gets to set the price, subject to a minimum price, selected by AZ, that's guaranteed to the seller, even if AZ discounts the item below that price. I've once in a while bought product where there's some note to the effect that AZ is kicking in some contribution to lowering the price, which seems to correspond with this SBA program.

There's some interesting detail on the SBA program here: https://www.ecomcrew.com/the-a...

Prices on AZ change all the time, as you can see from camelcamelcamel.com, or by putting products in the "save for later" list and observing the updates on prices when you're about to checkout. It was just as controversial when AZ switched to the "agency" model for e-books under pressure from Apple, where the publisher got to choose pricing instead of AZ - but books are a different kind of product, as there isn't really a brand-X replacement for a particular book by a particular author, unlike laundry soap or a USB cable - but there are multiple formats e-book, paperback, hardback, library binding, etc., and for some formats, it seems AZ gets to choose the sales price, and others, the sales price is set by the publisher. Many AZ prices are changed dynamically by algorithms that sometimes go to strange places, as when seller X sets the price at 105% of seller Y, and seller Y sets the price at 120% of seller X, and ordinary products start getting priced at extraordinary prices. https://fortune.com/2020/07/14...

Comment Boeing (Score 1) 120

News articles (many of which which repeatedly confuse "5G" with "completely optional use of C-band frequencies for 5G by Verizon and AT&T") have solely indicated Boeing equipment, particularly the 777.

This shouldn't be blamed on "5G" rather than crappy equipment supplied via Boeing, if it can't properly filter out-of-band interference. Even more damning, a 5G signal should look like white noise, not in any way resembling the continuously modulated signals used in radar altimeters as described by Boeing.

https://ecfsapi.fcc.gov/file/1...

By these news accounts, Airbus equipment doesn't have these problems.

Submission + - Amazon donating $15M to Code.org to create AP computer science course (geekwire.com)

An anonymous reader writes: From Geekwire

Amazon is making a $15 million donation to Code.org to help the Seattle nonprofit launch a new Advanced Placement computer science programming course aimed at underrepresented groups of students.

The gift from Amazon Future Engineer will be used to create a course that teaches students the same concepts as the existing AP Computer Science A (AP CSA) course. But it will have an inclusive focus that takes into account the unique cultural perspectives, interests, and experiences of Black, Latino, Native American (BLNA), and other minority students, according to a news release Tuesday.

The goal is to increase access, participation, and achievement in computer science among high school students of all backgrounds and encourage a more diverse range of students to pursue careers in engineering.

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