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Comment Re:Cloud fail (Score 1) 189

Oh silly underinformed person. There is a datacentre in Dublin. It is one of six Amazon datacentres. The others were unaffected, as were (our) public facing services, because only some (of our) servers are placed in Dublin.

It looks like a cloud from the outside. Those of on the inside know where the servers are because we want to choose where we place them for latency / redundancy reasons.

Comment Re:Don't say I didn't warn you! (Score 1) 189

Rubbish. We stripe across two EC2 zones. We would always want at least two servers anyway in case of any server failure. We still had 100% uptime over last night because failover worked correctly.

We are now seeing servers come back up gracefully and so far have not had to take any remedial action - a watching brief.

And it's cheap.

Comment Re:Failing geometry (Score 1) 258

Back when I was a wee lad, my wonderful maths teacher taught us to consider aleph-0, aleph-1 etc values of infinity as follows...

There is an infinite number (A) of lines of constant y that don't intersect y=0.
There is a larger infinity of lines of non-constant y that do: For each value of y at the y-axis (an infinite number equal to A), there is an infinite number (B) of angles at which the line can be drawn. Thus the first infinity cancels out, giving the probability of an arbitrary line not intersecting y=0 to be A/AB == 1/B == 0 because B is infinite.

Alternatively: for any location in 2d space, there is one line that does not intersect, and an infinite number that do. Probability of picking one that doesn't intersect is therefore zero even though there is a line that doesn't intersect!

qv Hilbert's Paradox.

Justin.

Comment Re:Duh. (Score 1) 897

This reply bothered me (see my other replies to your other posts). From the same website

Test averages include 21 mpg with a manual-transmission 4-cyl sedan, 19.2-21.6 with automatic-transmission GLX versions, 17.8 with V6 4Motion wagon. W8 averaged 16.2 overall, and 22.4 in mostly highway driving. All Passats require premium fuel

There is no way whatever my car gets anything that low. According to their figures, you are getting 30% over the norm.

Am I missing something?

Comment Re:Duh. (Score 1) 897

Curiously, I have a 1.8l 2003 Passat Estate (which I assume is Wagon in US-speak). I get nearly 50mpg(uk) at cruising 80mph. Allowing for our gallons being ~20% bigger than yours, I make that ~40mpg(us).

I wonder if one of our cars is built somehow differently for the specific market.

Comment Re:I don't think so (Score 1) 283

This should be modified insightful...

If this research applies to any 'population', then it could be considered a function of parliament/congress.

Which means that unless the corner case of two groups of >10% with opposing ideas occurs (e.g. labour/democrat vs conservative/republican), ideas will spread as soon as 10% are convinced (e.g. perhaps global warming, multi-culturalism is good, the trickle-down theory)

I'd say this demonstrates the need for greater evidence-based and scientific decision making. Who's with me? And can we persuade 10% of parliamentarians/congressmen?!

Comment Just for fun... (Score 1) 191

As Stanislaw Lem either didn't understand statistics or was simplifying for those who don't ;-)

For an equal chance of failure = (n-1)/n, you need x=ln(1/2)/ln((n-1)/n) parts to have a greater chance of failure.

For n=10e6, that's about 693 thousand components. Quite a lot less than a million!

Correct me if I'm wrong, I won't mind.

Comment Re:Sorry, this is photoshopped. The Shadows. No? (Score 1) 112

I think: The sun is behind the camera, and the apparent angles you see are caused by the shadow being forward (from the camera perspective) of the object. In the parts with vertical edges (the thruster) the shadows look aligned, but in the parts with curved edges underneath (front and back), the resultant offset produces an optical illusion.

Take another look.

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