My guess is Glenn Greewald's PC suddenly suffers some corruption and the few most secret pages of those documents mysteriously get corrupted or turn to blank...

My mistake - it is in http://src.chromium.org/viewvc/chrome/trunk/src/net/base/transport_security_state.cc?revision=107993&view=markup&pathrev=107993

and only enabled for google, twitter, tor, and a handful of other sites.

I believe functionality like this is already in HSTS and already used by google and chrome

Normally obfuscation is bad in cryptography - it means that the system is theoretically broken, but that the way to break it is quite well hidden.

This refers to cryptographically secure obfuscation. This is an entirely new field, and hasn't been possible till now. This paper doesn't prove how to do it, but proves that it is possible for a certain subset of operations.

Basicly it boils down to the fact it is possible to make a computer program that, for a given set of inputs a) generates a set of outputs b) in such a way that it wouldn't be possible to modify the program to make it generate a particular output without doing an exhaustive search (ie. try every possible input).

It's similar in principle to a "designer" hash algorithm - ie. I can choose the output for a given input, but after compilation it will not be possible to find out the mapping without knowing the input.

This type of algorithm could enable things people hate (DRM), but also many other new fields of computing, in particular doing computation on untrusted processors.

You know a "simple XOR" of the data with a one time pad key is theoretically unbreakable...

What matters is how you generate the keystream, not how you apply it to the data.

Bear in mind, this particular method is just a way to quickly do a large number of convolutions and get statistically fairly accurate results for the most activated convolution kernels.

This isn't incompatible with deep neural network models. This method can be combined with them and provide the same speedup there.

When the BBC implemented this clock, they were pushing forward technology by being the first large website to use HTML5 canvas. Yes, thats right, there is no flash in that clock...

They didn't make a big fanfare about it, they just implemented it.

Now that canvas is widespread, I would prefer they go push other bits of technology forward.

So this tech seems to use doppler shift of signals.

While I am sure some wifi hardware measures doppler shift to try to correct for it and get better reception in moving vehicles, none that I know of makes this info available to the driver, let alone exposes it to any program running on the router/laptop/phone.

So how does this work?

This is about right. MLC flash normally is rated for between 1k and 10k cycles. Newer flash is generally less as transistor sizes are shrunk to fit in more gbytes in the same die area.

A home PC will only write a couple of gigs a day under typical workloads, which turns out to about 5 full writes a year for even the small sizes. That would last you 4000 years assuming ideal wear leveling...

Basically, what they're saying is this will be absolutely fine for everything except outgoing mail servers and a few other specialist things.

The capacitor backup and write cache make wear leveling much much easier, since all frequently written to cells can be cached in ram, and only written once on shutdown, and the capacitor backup means even an unclean shutdown will save your data.

Having shipped something once, if your container happens to end up on the top of the ship, it can get _very_ hot.

One of the devices I shipped had a thermometer in, and it got to 83 C (181 F). Lots of things melted, and all the rubber seals became all sticky and useless. Lots of other bits of plastic became hard and cracked. Lots of bottled products either expanded and split or evaporated. Lots of batteries split and broke the things they were in. The shipping company didn't care...

I'd say, make sure you have some kind of data logger in there logging at the very least pressure, temperature, and wetness, and then if they drop your container in the sea you at least know what happened to it...

When someone buys a design from ARM, they buy one of two things:

1. A Hard macro block. This is like an mspaint version of a cpu. it looks just like the photos here. The CPU has been laid out partially by hand by ARM engineers. The buyer must use it exactly as supplied - changing it would be neigh-on impossible. In the software world, it's the equivalent of giving an exe file.

2. Source Code. This can be compiled by the buyer. Most buyers make minor changes, like adjusting the memory controller or caches, or adding custom FPU-like things. They then compile themselves. Most use a standard compiler rather than hand-laying out the stuff, and performance is therefore lower.

The articles assertion that hand layout hasn't been done for years outside intel as far as I know is codswallop. Elements of hand layout, from gate design to designing memory cells and cache blocks have been present in ARM hard blocks since the very first arm processors. Go look in the lobby at ARM HQ in Cambridge UK and you can see the meticulous hand layout of their first cpu, and it's so simple you can see every wire!

Apple has probably collaborated with ARM to get a hand layout done with apples chosen modifications. I can't see anything new or innovative here.

Evidence: http://www.arm.com/images/A9-osprey-hres.jpg (this is a layout for an ARM Cortex A9)

Considering this is Nature, the lack of any numbers, or even a link to a paper are very disappointing. The writing style itself makes it sound like they've just turned lead into gold as well...

I want diagrams, temperatures, power figures, etc. Not waffle. I expect better.

The general public don't use desktop mail clients...

They use webmail.

Geeks use desktop mail clients, and geeks can install their own. I'm surprisedMicrosoft even included a mail client really.

Amazon could do same-day delivery without any in-state infrastructure. Just pay another warehousing company to store and deliver the goods when asked to. Even paying a little premium for that, it's gotta cost way less than probably hundreds of millions of dollars of sales tax.

I see nothing wrong with this.

It's not so different from a good number of music videos, and those are seen as fine by most young guys and girls alike. Considering who this is targeted at, it seems all good to me!

Does the video advertise to guys more than gals? Perhaps, but it certainly addresses the feeling that science isn't sexy enough amongst the younger generations...