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Submission + - BitTorrent Performance Test: Sync Is Faster Than Google Drive, OneDrive, Dropbox 1

An anonymous reader writes: Now that its file synchronization tool has received a few updates, BitTorrent is going on the offensive against cloud-based storage services by showing off just how fast BitTorrent Sync can be. More specifically, the company conducted a test that shows Sync destroys Google Drive, Microsoft’s OneDrive, and Dropbox. The company transferred a 1.36 GB MP4 video clip between two Apple MacBook Pros using two Apple Thunderbolt to Gigabit Ethernet Adapters, the Time.gov site as a real-time clock, and the Internet connection at its headquarters (1 Gbps up/down). The timer started when the file transfer was initiated and then stopped once the file was fully synced and downloaded onto the receiving machine. Sync performed 8x faster than Google Drive, 11x faster than OneDrive, and 16x faster than Dropbox.

Comment Re:Blah blah Elon call me when (Score 1) 96

By that definition, nobody has a serious space industry, not even the government players.

Actually I think I might almost agree with you, but that's not a ding against SpaceX, it's a ding against our species.

I don't agree about launching more habs that we can fill with people - I'd just like to see enough SOMETHING launched to make opportunities. I'd also like to see a second basket to keep some of our species eggs in.

Submission + - What It Took for SpaceX to Become a Serious Space Company (theatlantic.com)

An anonymous reader writes: The Atlantic has a nice profile of SpaceX's rise to prominence — how a private startup managed to successfully compete with industry giants like Boeing in just a decade of existence. "Regardless of its inspirations, the company was forced to adopt a prosaic initial goal: Make a rocket at least 10 times cheaper than is possible today. Until it can do that, neither flowers nor people can go to Mars with any economy. With rocket technology, Musk has said, "you’re really left with one key parameter against which technology improvements must be judged, and that’s cost." SpaceX currently charges $61.2 million per launch. Its cost-per-kilogram of cargo to low-earth orbit, $4,653, is far less than the $14,000 to $39,000 offered by its chief American competitor, the United Launch Alliance. Other providers often charge $250 to $400 million per launch; NASA pays Russia $70 million per astronaut to hitch a ride on its three-person Soyuz spacecraft. SpaceX’s costs are still nowhere near low enough to change the economics of space as Musk and his investors envision, but they have a plan to do so (of which more later)."

Comment Re:Old news (Score 1) 399

Hmm, now I'm curious. A fighter may have a takeoff weight of say 15000kg. Let's say that the "short lean female" saves 40kg over an "average male". With the other reductions - clothing, oxygen, etc - you probably get down to maybe a 60kg savings. That's a 0,4% reduction in system mass. The rocket equation (applicable here too) probably boosts that up to about a 0,5% benefit in many regards. Still not that much

However, if you can shrink the cockpit , then you're looking at a much bigger advantage - possibly 100-200kg extra weight savings and maybe cutting 5-10% off the total aero drag. That could actually be a big deal - relevantly faster accelerations, top speed, range, etc.

Comment Re:Psychological issues (Score 1) 399

There is no "how human societies have been organized". Some societies have had (and even continue to have) near complete segregation of the sexes except for reproductive purposes. Some have had full integration.

And "popular wisdom" is in general stereotype BS. It was "popular wisdom" that said that people of African descent were worthless for anything except manual labor and it's pointless to try to educate a woman, that gays are a social evil that needs to be obliterated, that burning witches is the only way to save the town, and that letting the races mix is tantamount to national suicide.

Submission + - Government Vehicle Recall Site Overwhelmed (safercar.gov)

darylb writes: The NHTSA's safercar.gov website appears to be suffering under the load of recent vehicle recalls, including the latest recall of some 4.7 million vehicles using airbags made by Takata. Searching recalls by VIN is non-responsive at present. Searching by year, make, and model hangs after selecting the year.

What can sites serving an important public function do to ensure they stay running during periods of unexpected load?

Comment Re:Women prefer male bosses (Score 1) 399

You seriously think you can make a claim credited to a scientific study, and then when you can't show evidence that such a study claiming what you did was ever conducted, suddenly switch to a "but everyone knows" laden with old gender stereotypes and the standard lame appeal to darwin - and think that will fly?

In almost any sentence where people say "Women (verb)..." or "Men (verb)..." and it's about something psychological (as opposed to, say, something involving reproductive organs or a statistical difference in strength / height or the like), 99% of the time it's equally accurate to simply say "People (verb)..." The popular perception of differences between genders (including the effects of both brain structure and hormones) is often vastly different from the statistical reality. Screw Mars and Venus; men and women are from Earth. Psychologically, we're statistically virtually identical in most measures. And in many cases where there are differences that even manage to meet statistical significance, what differences there are may well be artifacts of culture.

How little are most of these "differences"? This set of graphs puts it into perspective.

Again: Either present your supposed "study" or drop the issue.

Comment Re:Food is not the limiting factor (Score 4, Interesting) 399

That is, of course, for a given radiation dose, which is independent of body cross section - which is relevant in real-world scenarios. If we assume an isotropic radiation exposure profile, an average male height of 174cm, an average female height of 161 cm, and asssume an equivalent profile, then a man presents a 17% higher profile to radiation exposurediation exposure, so if a woman has a 50% higher (150%) cancer risk, then it's only 29% higher for a fixed radiation flux per square meter.

However, let's look further at this. Given the smaller size of members of a female crew, you can shrink the spacecraft occupant space by 8% on each axis, or a volumetric decrease of 26%. Mass changes are more difficult to reckon. Life support, food, water, etc is dependent on metabolism, which the article shows is dramatically lower for women in space. Fuel needs are proportional to all other mass issues. Only a few things (such as computers and scientific equipment) don't trace back to crew member size and mass. Regardless, for a given launch weight, it's clear that you can afford the mass of a significantly increased amount of radiation shielding for a female crew due to the weight savings elsewhere, probably easily more than offsetting the cancer risk.

Beyond this, the average US astronaut age is 34, an age well after when most women are done having children (assuming that they even want to have children). Given that the article states the risk is from breast, ovarian, and utirine cancer, I wouldn't be surprised if many would consider full hysterectomy for the ability to travel to Mars.

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