December 3, 2013

More bits

Advent Computing: More bits

Yesterday I talked about encoding characters, i.e. letters and numbers and symbols, in bytes. One byte can represent any number between 0 and 255, and the near-universal standard known as ASCII gives a specific character for any number between 0 and 127. If you write...

Advent Oil & Gas: Reserves and reservoirs

Having looked at how oil and gas are formed, it makes sense to look at where it all is now.  Everyone knows that you oil and gas are found underground, but you can’t just drill anywhere and find the stuff. Oil and gas reservoirs need...

A Buchner funnel and side-arm flask

Advent Chemistry: Filtration, Faster

So, as mentioned, filtration is really slow. Sufficiently so that in reality, it’s hardly ever done that way. Unless there’s a compelling reason not to subject your mixture to anything more aggressive than gravity, you use a related, but more complicated bit of kit, and...