Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:you know what they say: you cant trust google (Score 1) 80

I have a similar NFC tag in my car. And yeah, I could get Tasker to use non-data charging as a trigger instead, but I also do non-data charging by my bedside. And since I have a different bluetooth radio there and don't want GPS or max brightness, I use a second NFC tag for that with silent profile, no notification lights and screen dimming instead.

NFC isn't the answer to everything, but it's occasionally quite handy, such as sharing youtube or map links with a quick tap, no app required.

Comment Re: This will help the Occulus Rift A LOT!!! (Score 1) 125

Some people may take longer, two or three weeks or whatever - but if you're feeling more than just a touch of queasiness, you're overdoing it. It should be fun, not a burden. If you push yourself too hard and feel too nauseated while in VR, you might set up a mental association that'll take even longer to break. Relax and take your time to enjoy it in small doses.

Oh, and make sure your Rift is set up carefully, use the correct FoV and IPD settings, avoid any sudden movements, and it'll go a lot easier on you.

Comment Re: This will help the Occulus Rift A LOT!!! (Score 1) 125

You'll quickly build up a tolerance, if my own experience, and others I've heard from, is any guide. Don't overdo it, just 10-15 minutes a day for a week or so and you'll be fine in no time.

Your wife may even find that a few more controlled sessions on the Rift actually improves her motion sickness in other contexts too. Some people have reported curing their own car sickness that way.

Comment Re:And what most folks are missing... (Score 1) 437

Finding it hard to follow your train of thought, but if I understand you right...

There are multiple factors, not one "root cause". Orbital precession isn't enough by itself, but when combined with orbital eccentricity and obliquity AND favourable topology, then you get an ice age. That's why they don't occur at *every* orbital cycle - and why they can sometimes occur between cycles (e.g. if intense volcanism causes enough cooling to trigger an ice age by itself).

If you want a specific example, try this paper, which describes how, 116,000 years ago, a pattern of ice sheet formation and melting every few thousand years was triggered by the Bering Strait being shallow enough that whenever sea levels lowered sufficiently through ice formation, the Strait closed, which changed the salinity mixing of the Pacific and Atlantic oceans. This intensified the Atlantic's meridional current, which warmed parts of Greenland and North America sufficiently to melt enough ice to re-open the Strait - and the pattern repeated.

This pattern was eventually broken 34,000 years ago when (yes) we reached a point in our orbital cycle that kept temperatures cool enough, and the Strait closed long enough, to stabilise the climate, so that when it opened once more 10,000 years ago, the climate remained stable enough to allow our civilisation. So as you see, it's not so simple that there's a single "root cause" we can pin it on, but that doesn't mean we don't know what did it - we can see (and simulate) how multiple factors combined and interacted to result the ice ages we can see in the ice core record, which gives us a pretty solid explanation as to the causes of all the ice ages over the last 116,000 years.

Comment Re:Earth also has the potential (Score 3, Interesting) 137

The two are not linked. If we move off fossil fuels, our net CO2 emissions are cut to virtually zero, regardless of population (in fact, increased population acts as a carbon sink) or energy usage. Given enough cheap, carbon-free energy to distill seawater and power hydroponic stacks, we can support a far larger population if required.

Then all we have to worry about is excess waste heat, which will be a huge problem in 300-400 years. Though limiting ourselves to solar-derived energy can help a lot here.

Comment *Restricted* user profiles (Score 1) 244

What's new about the profiles is that now they can be restricted from certain apps or actions (with some granularity), for parental control.

Other new features include:

* Intermittent Wi-Fi scanning for location (saves battery)
* OpenGL ES 3.0 support
* Bluetooth 4.0 LE and AVRCP 1.3 support
* Autocompleting dialpad
* Virtual surround sound

There's more under the hood changes:

* SELinux MAC system support for the app sandbox
* Better WPA2 EAP and Phase 2 authentication support
* Hardware root of trust support
* Modular DRM support (e.g. allows 1080p Netflix)
* Hardware geofencing
* Media muxer and VP8 encoding
* And of course, further rendering and other optimisations

Still, it's no ICS or Key Lime Pie.

Comment Re:And what most folks are missing... (Score 1) 437

Google Translate didn't do an awesome job at that, but AFAICT it says we're not totally sure of all contributing factors, but puts it down to a combination of Milankovitch cycles, plate tectonics, topology changes that redirect air and water currents, and vulcanism.

Which are all described in the second link I gave, too. Like I was saying, most earth scientists have a pretty good idea of what causes ice ages. Orbital variations are often a significant factor (as evidenced by the timing correlations), but of course there are other factors too.

I don't think you could argue that "no one knows what caused the glacier periods" when we have identified numerous contributing causes that explain them all quite well. Are we 100% absolutely certain? No, nor can we be about anything (except mathematics), but the causes of glaciation are relatively well understood.

Slashdot Top Deals

E = MC ** 2 +- 3db

Working...