Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
Trust the World's Fastest VPN with Your Internet Security & Freedom - A Lifetime Subscription of PureVPN at 88% off. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. ×

Comment Re:Basic Physics (Score 1) 57

Or, perhaps, your own understanding of physics is bullshit because, well. Physics is bullshit. And this is why physics hasn't accomplished anything significant since the atom bomb. It's mental masturbation.

Well here's some things physicists have done after the bomb that I thought of off the top of my head: Lasers (and laser-related stuff like laser spectroscopy), Magnetic Resonance Imaging, Holograms, atomic clocks, high temperature superconductors, tunnel diode, scanning tunneling electron microscope, atomic force microscope, stochastic resonance, charged coupled devices... All kinds of stuff that maybe isn't as high profile as the atomic bomb, but are essential to things you take for granted, like flash memory and liquid crystal displays in your electronics or the Hall effect sensors in your anti-lock brakes.

In any case, leaving aside the obvious hooey , if physics were mental masturbation then anyone could do it. It's the fact that so few can do it that makes so many people see it as a pointless and trivial exercise.

Comment Re:vGPU seems cool (Score 5, Informative) 60

My understanding is that it is more extensive: PCI(mostly 'e' these days) passthrough allows you to assign a physical device to a VM; but the device can't be shared: if a given piece of hardware is being passed through to one of the guests, none of the other guests or the host OS can use it.

This 'virtual GPU' stuff is supposed to make allocating GPU resources between VMs closer to how it is with CPU time or memory, where all the guests and the host can't exceed the capabilities of the machine they are running on; but they can all have access, with relatively modest overhead, to the same device.

I don't know if things work as pleasantly as desired yet; but in principle it should be a lot more convenient than full device passthrough. Especially in cases where you might be interested in the GPU for its computational capabilities, video transcoder, etc.

Comment Re:Why not blame the manufacturer? (Score 1) 169

If you think that finding a vendor that doesn't keep cutting battery life/SD card slots/headphone jacks/basic safeguards against electrical fire in order to make it thinner, cheaper, or both is hard; just try to find one that ensures sufficient borated polyethylene(with something else to sop up the resulting gamma rays) or other neutron shielding into their products.

There probably are some, making bits for nuclear reactors and industrial, scientific, and medical users of neutron sources; but it's a niche.

Comment Re:LibreOffice? (Score 5, Informative) 93

You can definitely embed Windows Metafile images in LibreOffice on Windows; but I'm not entirely sure if that is enough to make it vulnerable. WMF is dangerous because it is basically a package of GDI function calls, which might be good for efficiency or compactness; but has led to a number of creative and executable things being shoehorned in(as in this case; and repeatedly over the years).

However, there are several image handling libraries that can render or convert WMF images without access to GDI; so in those cases GDI bugs wouldn't be a problem(though you probably have other things to worry about).

This Libreoffice VCL documentation suggests that LibreOffice uses its own VCL WMF filters; but I sure wouldn't bet anything remotely important on that without testing it first; or knowing rather more about how LibreOffice is put together.

Comment Re:Boo hoo, just stop rainwater from leaching lead (Score 4, Informative) 204

You might not think so, because elemental lead is not water-soluble. However compounds of lead like hydroxides or carbonates are soluble and can form from elemental lead by contact with water, e.g., 2Pb + O2 + 2H2O -> 2 Pb(OH)2.

This is why it's perfectly safe to drink wine from leaded crystal wine glasses, but a bad idea to store wine in a leaded crystal decanter.

Comment Re:Prior art (Score 1) 71

The reason to name Ray Tomlinson is because the set of header fields that we consider the core of an Arpanet/Internet email message originated with him. He, unlike Ayyadurai, was a humble man who freely admitted that there had been many people working on these concepts, and that his contribution by and large was to publish an RFC that laid out those developments at that point in time (1973-75) of what Arpanet email should be or was capable of. In reality, of course, messaging systems predate even the Internet by many years.

Comment Re:Yeah (Score 1) 71

Nothing so violent. A judge should hurt his feelings by declaring him a vexatious litigant. That's the appropriate route for those who use (and abuse) the court system for idiotic and abusive lawsuits.

But I think Ayyadurai is in the "there's no such thing as bad publicity" department. Doubtless he's thrilled that his claims are being talked about again.

Comment Re:Boo hoo, just stop rainwater from leaching lead (Score 2) 204

So as long as you keep the lead from escaping into groundwater (could bury them in a landfill with a clay or plastic lining in a big mountain), this is fine. If lead prices are so cheap that it's easier to mine new lead than it is to recycle it from CRT glass,

True, and true, with reservations. Somebody has got to pay for keeping the lead from escaping into groundwater. Should it be everyone, or the people who benefited from the use of the lead?

And if everyone pays, human nature being what it is people will pay to make the problem "go away" without looking too closely at the details, where "go away" includes "making it someone else's problem."

The thing is, if you could completely internalize all those expenses so the cost of dealing with never just "went away", the market would do a fine job of efficiently managing lead and disposal management as a resource. But that doesn't happen naturally, by itself.

Slashdot Top Deals

"What I've done, of course, is total garbage." -- R. Willard, Pure Math 430a

Working...