Global warming is set to make life distinctly uncomfortable for reptiles and other cold-blooded animals.
Unable to produce heat, they rely on strategies such as moving from colder to warmer areas to function. Soon that might not be an option for tropical species.
See Lizards will roast in a warming world
Giving the engine a shot of alcohol, but only when it really needs one
Driving and alcohol dont usually mix, but giving a petrol engine an occasional slug of the hard stuff could make it as fuel-efficient as a petrol-electric hybrid.
Called a direct-injection ethanol engine, the unit runs primarily on petrol.
When it needs to deliver maximum power - to climb a hill or overtake, ...
If the murder took place in a reasonably populous area with a strong tradition of racial mixing, there may well be plenty of couples who match the description.
If there is just one other such couple, and we assume that the eyewitness evidence is correct, one of the two couples must be guilty.
Therefore, the probability that the suspects are innocent ...
In a population of 10,000, on average one person will have the disease and they will test positive.
However, because the test is only 99 per cent accurate, 1 per cent of the remaining, healthy population that is, 100 people will also test positive.
So if the suspect has tested positive, the odds are 100 in 101 (or slightly more than 99 per cent) that he does not have ...