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Scientist Seeks Investment For "Alcohol Substitute"

PeterKraus Re:You had me at ... (328 comments)

Jacqui Smith? The lady who clamed hubby's porn on expenses?

about 9 months ago
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Tesla CEO Elon Musk: Fuel Cells Are 'So Bull@%!#'

PeterKraus Re:Well, he's not wrong (479 comments)

I'm not a chemical enginner (just a chemist), but I doubt you can just use the same piping which you used for propane/butane for hydrogen. A lot of the energetics of manipulation of hydrogen are quite different (it heats on expansion - Joule-Thompson), I'd imagine there might be issues with valves and seals along the distribution network, and finally, hydrogen requires much stricter safety specs than hydrocarbons (at least in our labs, you need a special cert to use H2, while anyone can use C2H4 etc.).

about 9 months ago
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What's Causing the Rise In Obesity? Everything.

PeterKraus Re:Failure to even Attempt to process the article. (926 comments)

I'm not a nutritionist, but from what I've read about sports training, I'd guess it's not the muscle tissue which is being consumed, but rather the locally-stored glycogen reservoirs (each of which comes with 3 water molecules). This can be done via both aerobic and anaerobic glygocenolysis in fast muscles (FOG and FG).

1 year,1 day
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What's Causing the Rise In Obesity? Everything.

PeterKraus Re:Failure to even Attempt to process the article. (926 comments)

So what part of "if you burn more than you eat, you will lose weight" is not true? If your net output is higher than gross input, you're definitely running off reserves - whether it's glycogen, glucose, or fat.

The reverse ("if you eat more than you burn, you will gain weight") is not necessarily true.

1 year,2 days
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What's Causing the Rise In Obesity? Everything.

PeterKraus Re:Failure to even Attempt to process the article. (926 comments)

I'm sorry but it clearly is excess calories. If you burn more than you eat, you will lose weight. It's basic thermodynamics.

The reason why your caloric intake is such as it is, why your burning efficiency is lower, or why you're less active and hence burn less are obviously quite a complex set of conditions, but in the end, it's really just about energy conservation.

1 year,2 days
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RadioTimes.com Accidentally Included In UK Antipiracy Blocking

PeterKraus Re:Filtering doesn't work. (43 comments)

That's a good one, thanks.

I really liked the comment here: discussion.theguardian.com/comment-permalink/19421618

1 year,7 days
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British Prime Minister Promises Default On Porn Blocking

PeterKraus Re:Both right and wrong move (311 comments)

Hey, where's your trigger warning? I trigger on hats!

about a year ago
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Fifteen Years After Autism Panic, a Plague of Measles Erupts

PeterKraus Re:And that's why you should listen to experts (668 comments)

It was the same with me and my girlfriend when watching Bones. In the first couple of seasons, they mainly fucked up the IT, and maybe anthropology. When I said the stuff they do on the PC's is impossible, she wouldn't believe me.

However, both being chemists, the first time they used "a mass spec" for something it just can't do (like DNA sequencing or whatnot), she agreed with me...

about a year ago
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AMD Making a 5 GHz 8-Core Processor At 220 Watts

PeterKraus Re:Awesome (271 comments)

Yes, and look where it got them: Intel HD 4600 is still blown apart by an integrated GPU from an AMD APU costing half the price, and the Iris Pro (5200) is only on a BGA chip so far, and is rumoured to cost as much as my whole desktop built a year ago...

I'll give you the power, though.

about a year ago
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AMD Making a 5 GHz 8-Core Processor At 220 Watts

PeterKraus Re:Awesome (271 comments)

To be fair, on properly threaded applications, 4x Xeon E5-4650 system (>15000 GBP) is measurably better than the 4x Opteron 6380 (>4000 GBP) - it's approximately 10% difference in SpecFP and SpecINT 2006. The E7-8870 is actually worse than the E5-4650 in a 4-socket configuration, as the E5 is a Sandy Bridge part, while the E7 is Westmere.

We'll be buying two of the Opteron machines to run quantum chemistry and CFD on them.

about a year ago
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BBC Clock Inaccurate - 100 Days To Fix?

PeterKraus Re: Not-so-accurate source (487 comments)

Not in Britain. It's an Excise duty, and some vehicles are exempt.

about a year ago
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Tesla Motors Battles the New York Times

PeterKraus Re:Barbara Streisand Effect? (700 comments)

You should really learn the full story about the BBC case.

about a year and a half ago
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Home Server Or VPS? One Family's Math

PeterKraus Re:Free Hardware (380 comments)

Well, in the UK, on British Gas standard tariff, electricity is 12.8p per kWh, about 0.2 USD / kWh. It's still a LOT more than US prices quoted above.

about a year and a half ago
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AMD Next-Gen Graphics May Slip To End of 2013

PeterKraus Re:Wait a week (76 comments)

So... HALF LIFE 3 CONFIRMED?

about a year and a half ago
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Professors Rejecting Classroom Technology

PeterKraus Teach chemistry with a whiteboard (372 comments)

Well, I have to say, from personal experience, the best received lecturers in my undergrad course have been those, who used pen + paper and an overhead projector. The speed of writing was just right, and it also helped to understand the (organic) chemistry quite a bit. Hello, Dr. Sutherland.

I do appreciate that other parts of chemistry - mainly physical and inorganic, and even more advanced organic chemistry - are bit more difficult to draw on the spot, but some of the slides our lecturers have published are absolutely inexcusable.

In any case, I believe the lecture material should be available online at some point - and by that I mean all of it. This bullshit of "I will print ultra boring slides with 50 slides per lecture, with gaps, so you pay attention" was, frankly, not helping. Also, I believe all lectures should be recorded and posted online - maybe after the whole course is over - too. Size is not an issue, and the students are already paying for that content, and it doesn't cost the lecturers anything extra, once set up properly.

But interactive electronic classroom jazz in university-level chemistry is either good for the computational chemistry lab, or a waste of time.

about a year and a half ago

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