Interesting Space Facts.

[Eric Mc]

Nom de ploom said:

next summer - all being well my honeymoon will be an arctic cruise.

I cannot wait for perfectly clear skies just o be able to sit there and well... look up basically.

I've got a Nikon D40 so I hope (with a bit of learning beforehand) to be able to use it to capture some nice images.

You do know that the Arctic is called "The Land of the Midnight Sun" for a reason?

[Nom de ploom]

good point well made.

cue insomnia then instead...

[Eric Mc]

Antartica might be a better bet at that time of the year

[anonymous-user]

annodomini2 said:

The surface of Venus has an atmospheric pressure 93 times that of the Earth, the equivalent of being 930m (3069ft) under the sea.

It has a surface temperature of 462degC, which is hot enough to melt lead.

Surely its 9300m of water? 1 Bar (i.e one atmosphere) equals approx 10 metres of water, not 1

[annodomini2]

MercScot said:

annodomini2 said:

The surface of Venus has an atmospheric pressure 93 times that of the Earth, the equivalent of being 930m (3069ft) under the sea.

It has a surface temperature of 462degC, which is hot enough to melt lead.

Surely its 9300m of water? 1 Bar (i.e one atmosphere) equals approx 10 metres of water, not 1

Do your maths again.

10 * 93 = ...

[TheHeretic]

Eric Mc said:

Nom de ploom said:

next summer - all being well my honeymoon will be an arctic cruise.

I cannot wait for perfectly clear skies just o be able to sit there and well... look up basically.

I've got a Nikon D40 so I hope (with a bit of learning beforehand) to be able to use it to capture some nice images.

You do know that the Arctic is called "The Land of the Midnight Sun" for a reason?

Trying to take pictures of the stars, using long exposure, on a ship... Hmmm. Good luck with that!

[hairykrishna]

Chilli said:

RobbieKB said:

Some of them were very interesting!

The heart of a star reaches 16 million °C. A grain of sand this hot would kill someone 150 km away.

Edited by RobbieKB on Thursday 25th October 14:14

Absolutely mental! It just doesn't compute!

It doesn't, really. How's it going to kill someone 150km away?

A grain of sand at 16 million degrees isn't actually that much energy. Quick back of envelope ~60 micron sand grain, ~2e-9kg mass, shc of quartz is 830 J/kg/degree C. 26J to raise it from 0 to 16 million. It'd raise the temperature of my cup of coffee by ~0.03 degrees if I dropped it in.

[IainT]

hairykrishna said:

It doesn't, really. How's it going to kill someone 150km away?

A grain of sand at 16 million degrees isn't actually that much energy. Quick back of envelope ~60 micron sand grain, ~2e-9kg mass, shc of quartz is 830 J/kg/degree C. 26J to raise it from 0 to 16 million. It'd raise the temperature of my cup of coffee by ~0.03 degrees if I dropped it in.

I'm glad someone else did the maths, the proposition did seem a little strange.

[Caruso]

Speaking of Venus, a day on Venus is the equivalent of 243 Earth days, and is longer than a Venus year which is only 224 Earth days.

[TheHeretic]

Caruso said:

Speaking of Venus, a day on Venus is the equivalent of 243 Earth days, and is longer than a Venus year which is only 224 Earth days.

That must make calendars complicated.

[Caruso]

TheHeretic said:

That must make calendars complicated.

The birthday parties make up for it.

[Einion Yrth]

iamfast said:

the colour of the universe is beige.

Neither interesting, nor a fact; fail.

[Eric Mc]

A while ago they said it was green. Can't they make their bloomin minds up.

[Tiggsy]

Eric Mc said:

Nom de ploom said:

next summer - all being well my honeymoon will be an arctic cruise.

I cannot wait for perfectly clear skies just o be able to sit there and well... look up basically.

I've got a Nikon D40 so I hope (with a bit of learning beforehand) to be able to use it to capture some nice images.

You do know that the Arctic is called "The Land of the Midnight Sun" for a reason?

That is rather funny. Planning a trip of a lifetime to see pitch black skies and stars aplenty....only to find the sun never sets!

[rhinochopig]

AJI said:

If you were to fart in outer-space would the resultant particles reform under gravity back in to a turd?

Dark Matter?

[Eric Mc]

Sounds more like the beige stuff someone was talking about.

[227bhp]

The Moon gets 38mm further away from The Earth every year, one day it will just be a speck in the sky like a star.

[annodomini2]

227bhp said:

The Moon gets 38mm further away from The Earth every year, one day it will just be a speck in the sky like a star.

It will only move out another ~2900 km before the Earth is swallowed by the Sun, so it will never be a speck in the sky.

[227bhp]

annodomini2 said:

227bhp said:

The Moon gets 38mm further away from The Earth every year, one day it will just be a speck in the sky like a star.

It will only move out another ~2900 km before the Earth is swallowed by the Sun, so it will never be a speck in the sky.

The Sun cannot swallow.

[Morningside]

One thing I recall an astronaut saying was that in a spacesuit you are still weightless so you are actually floating around inside banging about.