John Cuthber

Yep. http://en.wikipedia.org/wiki/Leap_second Well, the tidal drag is the biggest factor...

He has to use a slide rule instead.

I suspect that " (213 or 8192 words) " should be (2^13 or 8192 words) and a superscript got lost there somehow.

The other problem is that a dog and I have some common ancestor (way back), but it doesn't make us the same species.

I trust you also accept that this was essentially completely wrong. Concordance was, indeed, saying that JC was everyone's ancestor.

I don't suppose it's any military secret to say that they people who make bombs generally want them as small and light as possible. Using uranium metal avoids "diluting" the reactive material with anything else and so it gives the smallest critical mass and critical volume.

A 16 bit address bus lets you access 65536 different locations. In that sense (and, without the book's context, it's hard to comment on what sense is being used) 16 bits is equivalent to 65536 bytes. It's still 65536 however you choose to label them. I still suspect an error rather than anything complicated.

I'm not sure I should be posting in this topic, since I'm not based in the US but... If I was planning to emigrate to anywhere it would need to be somewhere that I spoke the language. As it happens, my first language is English so I can get by just fine in the States (as long as I don't try to talk about pavements) My second language is French, so I might consider going to a French speaking country. I would hardly consider anywhere else. Now look at the number of people in the world who speak English as a second language (directly or indirectly due to our colonial past). I suspect that explains part of the reason why the US is reasonably popular and why the UK does "better" than France or Germany- who have comparable weather, economies and so on. There are of course lots of reasons. I don't think Lebanon is gaining so many people because it's a wonderful place to be; I think the fact that it's the next country along if you are leaving Syria has a lot to do with it. The big problem with checking numbers of illegal immigrants is that they are, by their nature, difficult to count accurately. Some poor souls probably still think of America as "the land of the free"

The diameter of a sphere is not the same as the radius. That makes the calculated density 8 times less than it should be. 2.526*8 = 20.2 That's close enough to the real value of 18 or so g/cc

I'm still waiting for evidence that it works.

If the air is so cold and dry that your lungs are struggling to keep warm, would posting a question on the web be your first choice of action?

Who is "C0c0rdance" Assuming he's the narrator of the video then it's your turn to be told to listen to it. In particular, listen to what he says starting from about 20 seconds in. the narrator makes it explicitly clear that he's not talking of "a cousin of a cousin..." but a direct descendent, not just of Caesar but of almost all historical figures. He makes the claim and he draws pretty diagrams. But he doesn't prove his claim. As far as I can see, if nothing else, you owe Delboy an apology.

That's not a bad metric but I think total migration is a better one because the difference between an illegal and a legal migrant may change overnight because of a change in the law. . And, through the wonder of Wiki, we even have an answer http://en.wikipedia.org/wiki/List_of_countries_by_net_migration_rate The US is 40th just behind the UK and Brunei

Has anyone ruled out the idea that the author simply made a mistake?

So, what bad language are you accusing me of using?

Am I the only one who is wondering how the temperature dependence of the surface tension of blood is very important. Essentially, if it's not pretty close to 37C the surface tension isn't the issue.

Perhaps you would like to answer my question and say where in the first video they actually address the issue of closed groups rather than posting a second one. Don't get me wrong, I'm sure the human race is pretty thoroughly interbred, but there's nothing in that video that proves it. Here's another idea for you to consider. Imagine that the caste system in India had been up and running when JC was born. Imagine that it was rigorously enforced and the people were only allowed to marry within their caste,. That video talks about numbers of people and their ancestor. But there's no way for JC's descendants to end up within any of those groups? And that's before we address the idea that it's perfectly possible that JC was sterile- he left no legitimate heirs- perhaps he left none at all.

Where? Also it seems to me to be faulty logic. The video takes the view that an Inuit and I have ancestors in common because his ancestor tree and mine double at each generation so we run out of ancestors. Well, so do the ancestors of my neighbour's dog. Since dogs were only domesticated something like 15000 years ago and they breed faster than people they too run into a pedigree convergence. Call it 3 years for a dog generation. Even a hundred years gives about 33 generations That's ten billion ancestral dogs- there can't have been that many dogs. there were only about 2 billion people Why is there a difference between saying that we are all descended from Caesar and that we are all descended from his dog? The obvious answer is that none of us is descended from his dog. But that's begging the question. Why are we all descended from JC? What proof is there that my ancestors (in Scotland) were not all marrying within the village at the time the Romans invaded and have done so ever since? The odds may be against it, but that's not proof.

Your best strategy is to learn to admit it when you make mistakes.

Substitute astrology and you will see what I mean. There is no more valid evidence for astrology than there is for a tiger in your room. Feel free to show that I'm wrong.

How can you get to sleep at night with that tiger in your room? Obviously there's no evidence for that tiger but, as you say, that's no reason to suppose he's not there. Or do you realise that you were overstating the case?

It clearly applies to the title of the thread which you started.

No it wasn't. Our choice of models does not affect reality.

Last time I checked, gravitational lensing could change their direction, and that's an acceleration.