Each "sigma" is one standard deviation (standard deviation is denoted using the Greek letter Sigma... hence the name). For normally distributed data:...

Can you get the freshness column back on the homepage though (once its fixed) because its highly useful to know if any new posts are made. Not yet, I...

So, no time lapse for me yet! Welcome to the Forums, Chris! The one feature of the X100S that is irritating is the fact that you can't connect an in...

Full report is now online here.

I've had to temporarily disable the "freshness" column on the forum home page, as there appears to be a conflict with the new version of Wordpress. Th...

Initially, the European Space Agency thought that its chances of successfully landing on Rosetta’s target comet were about 70-75%. Now chances are low...

We’ll listen out for the scream… The site still appears to be up, so what I've done doesn't seem to have broken anything. Whether it improves perform...

OK, word of warning... some odd things might happen to the site over the next couple of hours... I'm about to attempt something radical... if it works...

instantaneous communication might be possible within the next hundred years! It might take that long to sort out the performance issues on this forum...

Any ideas? Hmmmm... that's rather irritating. I don't really know I'm afraid. I didn't have a problem setting up Gravatar, but it's possible that the...

Nice photo, shame your sensor is scratched I could take serious offence at that kind of remark you know ;)

I see that there’s going to be an audio recording posted on their site a few days later Well spotted! I didn't see that. Have to make sure we post a ...

Just seen that the Royal Society have a lecture on "The Private Life of Isaac Newton" this coming Saturday at 1pm. It makes reference to Keynes in th...

Hang on – you mean this thing would float??? Pretty sure that all comets have a density of less than water so, yes, technically, they would all float...