Worse things happen at sea dept.

The gaslit bar was icy, heat from the blazing fire going straight up the chimney with the windy draught. Rain poured in above the windows in the small hours and we laid towels to dampen the sound. Downstairs in the morning all was locked and deserted: the landlord hadn't realised we expected breakfast. The taxi driver hadn't got the knowledge.

Name that cat - A picture quiz

Sado-hygienist

She makes me feel lazy, careless, stupidly deaf to repeated good advice, wily and deceitful. If  I am allowed to overcome these failings then I can look after my own teeth, which is not the objective.

The pain her implement causes is attributable to receding gums, caused by my neglect of proper methods.

I am a little depressed, and my teeth don't really look any better.

Mending

Health, Safety and Steamed-Up Glasses

Giger bugs

Saw these near Men-an-Tol on the Penwith peninsula. Found afterwards that they are the larvae of the Bloody-Nosed Beetle, or Blood-spewing Beetle, which feed exclusively on 'bedstraws' (I always called this goosegrass). The adult spits a red fluid when in trouble. - I wanted to identify the weird, leathery beasts and went to a specialist website; with a heavy heart, knowing how slim my chance of finding them among thousands. But they were the very first in the list of recent queries! Someone else had just seen them, and in Cornwall too.

Physics and the Cinema: notes from an excellent free lecture in the University of York programme

Earlier this month, Professor Jordi Miralda Escudé gave a public lecture at the University of York, which looked at the relationship between science fact and science fiction. In space, we know you can’t hear screams, but should you be able to see lasers and set things on fire? We know it’s a long way down the road to the chemist’s, but how many billion light years away from Earth are alien invaders likely to be?

- You really notice the extraordinary number of casualties in sci fi films.

- Newton first described ‘escape velocity’. Anything over 5G for more than a few minutes has serious effects and can be fatal.Verne’s ‘gun’ method would have resulted in about 40,000G.

- Why did no one notice the ARMAGEDDON asteroid until it was 18 days away? Someone was lying down on the job.

- Number of errors in ARMAGEDDON logged by NASA inductees is 167 and rising. The asteroid was way, way, way bigger than you need to annihilate all life on earth. I think it was ‘size of Texas’. Dinosaur one was 6 miles. To blow it up today we would be able to assemble probably a 100 megaton bang, max, and you’d need two trillion megatons. Then all the bits would keep coming and annihilate all life on earth (in the film they all miraculously miss).

- Effects of weightlessness: you know these. 45% of astronauts vomit. Unit of vomit is a Garn Unit, Garn being the most profuse vomiter ever known in space. So your Garn score is a fraction of 1, as you can’t match one Garn. Also you fart a great deal.

- STEERING – imagine people swooping through meteor showers, dodging baddies etc. Can’t be done. You can issue a little puff of nitrogen to change your attitude or head off in another direction, very carefully, but there is no friction out there. Fictional spaceships behave as if they were fighter planes in air.

- STARSHIP TROOPERS is a favourite of Professor J’s. The enemies live on the other side of the galaxy and hurl asteroids at Earth, effectively ‘throwing rocks’. We saw the hero on their territory and radioing for aid. The aid would arrive after 120,000 years.

- If a real asteroid comes, it’s better to move away from the target area than smash the asteroid up and make lots of different target areas.

- INDEPENDENCE DAY: the baddies come from ’90 billion light years away’. It is only possible to come from 13 billion light years away, and how did Will Smith know anyway?