Science stories

[Ian Murray]

Some assembly required

Attachment 4888

[antichrist]

You remind me of Jay Barbree, born 1933, similar vintage to yourself, who claimed we had to conquer an alternative home in space as one day earth will be inhabitable. what a pessimistic hero who probably contributed to a self fulfilling prophesy.

Back to your post, so if we become infertile in a hundred years time due to space travel necessary chemicals in our environment all your listed benefits are worth it? We would not need Barbree's new outer space home - he never thought the end game very well.

In the same vein Branston has gone outter space - costing a fortune in bucks and pollution for a few minutes of thrills. All because he marvelled at man walking on the moon when he was a child. To me that walk was absolutely useless in the scheme of things. If Branston can do it so can everyone else completely wrecking the ozone layer probably. The world can survive without advanced science but advanced science cannot survive without the world.

[Lorieas]

What came first the egg or the chicken?

[Lorieas]

Do we think that there will be humanoid robots in the next 20 years that will take over human jobs?

[Ian Murray]

Remains of impact that created the Moon may lie deep within Earth

Scientists have long agreed that the Moon formed when a protoplanet, called Theia, struck Earth in its infancy some 4.5 billion years ago. Now, a team of scientists has a provocative new proposal: Theia's remains can be found in two continent-size layers of rock buried deep in Earth's mantle. ...

[antichrist]

What came first the egg or the chicken?

There is a serious answer to that but I forgotten what is

[Ian Murray]

Opinion
Australia spent a million dollars training me – and now I’m leaving

[littlesprout85]

Here is a bit of new news on da animal science front...... Looks like Banana's really brings out da aggressiveness in male mice similar to da effects of female pregnant hormones given off during pregnancy that da male mice pick up on....... Don'y Be Storing any Nanna's in your crib for any length of time or your mice will be getting outta hand fast...JOY JOY !!!1

-Sprout85

[littlesprout85]

Kk....... Just something to ponder in our busy days..... There Be a Black Hole in our own Milky Way Universe.......... Current Pics from Hubble show its So Strong its Bending Light as it Sucks Everything including da Light Down it Massive Gullet ....... Straight outta da Disney Movie "The Black Hole " ........

Sprouty for 1 find this alarming..... Where Did da Black Hole Come from :?..... How Long Has This Beastie of a Hole Been in Our own Universe :?.... Is DA Black Hole Heading in our Direction EEky !!!1

-Sprout85 =)

[Blunderbuss]

Hi Sprouty,
No need to worry. My (admittedly amateur) view, is that all(?) galaxies have a Super Massive Black Hole (SMBH) at their centre. And just as it takes the Earth 365 days to circumnavigate the Sun, so our solar system is rotating around the black hole. Only it takes around 230 million years to get all the way round. Since the Earth was formed around 4.5 billion years ago it was made less than 20 complete trips around our SMBH. And we are still on the same circuit as when the dinosaurs were roaming the Earth.

Since the SMBH is 28,000 light years away from us there is no danger of us falling in. Maybe a bigger concern would be that one of our nearest neighbour galaxies (Andromeda) appears to be on a collision course with our Milky Way – in about 4 billion years. Although by that time our Sun will be running low on fuel which is also bad news for Earth.

[Patrick Byrom]

Hi Sprouty, ...
Since the SMBH is 28,000 light years away from us there is no danger of us falling in. Maybe a bigger concern would be that one of our nearest neighbour galaxies (Andromeda) appears to be on a collision course with our Milky Way – in about 4 billion years. Although by that time our Sun will be running low on fuel which is also bad news for Earth.

Also, since nothing (with mass) can travel faster than the speed of light, even if we were on a collision course with the black hole, we still have at least 14 000 years to do something about it.

What we should be more worried about are smaller black holes, which are more numerous and (probably) a lot closer. There's even a tv series about what might happen if one enters the solar system. Although the black hole itself doesn't make an appearance until the very end of the final episode!

[Scott Colliver]

I think the chances of humans being made extinct from a black hole is extremely unlikely because I think it is far more likely humans will destroy the earth and go extinct long before that happens.

And if humans are around that long then the chances are they have discovered a way to live elsewhere than Earth and will survive on other planets while the Earth is destroyed.

[Desmond]

Kk....... Just something to ponder in our busy days..... There Be a Black Hole in our own Milky Way Universe.......... Current Pics from Hubble show its So Strong its Bending Light as it Sucks Everything including da Light Down it Massive Gullet ....... Straight outta da Disney Movie "The Black Hole " ........

Some of those pictures are breathtaking to behold.