INFORMATION

This website uses cookies to store information on your computer. Some of these cookies are essential to make our site work and others help us to improve by giving us some insight into how the site is being used. For further information, see our Privacy Policy. Continuing to use this website is acceptance of these cookies.

Science videos

Any topic related to science can be discussed here.
Post Reply
Message
Author

User avatar
Dave B
Posts: 17809
Joined: May 17th, 2010, 9:15 pm

Re: Science videos

#342 Post by Dave B » April 16th, 2014, 12:19 pm

You could say I'm a Carolin Crawford fanboy.
NO! Would never have guessed it! :D
"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."
Me, 2015

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#343 Post by Alan H » April 20th, 2014, 11:03 pm

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#344 Post by Alan H » April 21st, 2014, 1:25 pm

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Tetenterre
Posts: 3244
Joined: March 13th, 2011, 11:36 am

Re: Science videos

#345 Post by Tetenterre » April 22nd, 2014, 9:49 am

Generally good, but it is incorrect at ca. 2:29 - there is not more air at the back when he is going fast; only when he is accelerating, and only if there is something less dense than air to move forward.
Steve

Quantum Theory: The branch of science with which people who know absolutely sod all about quantum theory can explain anything.

User avatar
Dave B
Posts: 17809
Joined: May 17th, 2010, 9:15 pm

Re: Science videos

#346 Post by Dave B » April 22nd, 2014, 10:03 am

Tetenterre wrote:Generally good, but it is incorrect at ca. 2:29 - there is not more air at the back when he is going fast; only when he is accelerating, and only if there is something less dense than air to move forward.
Yes, had fun before trying to get the difference between the dynamics of acceleration and the "statics" of constant velocity over to people. Nearly as good as trying to prove the difference between weight and mass to them.
"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."
Me, 2015

User avatar
Tetenterre
Posts: 3244
Joined: March 13th, 2011, 11:36 am

Re: Science videos

#347 Post by Tetenterre » April 22nd, 2014, 2:00 pm

Dave B wrote:Yes, had fun before trying to get the difference between the dynamics of acceleration and the "statics" of constant velocity over to people.
Teaching astronomy/cosmology I have ample opportunity: "You are now hurtling in the direction of Belgium at about 600mph..." followed by orbital speed around the Sun, then around the galaxy, all of which is unnoticed. Nice basis for teaching relativity.
Steve

Quantum Theory: The branch of science with which people who know absolutely sod all about quantum theory can explain anything.

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#348 Post by Alan H » April 22nd, 2014, 2:38 pm

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Tetenterre
Posts: 3244
Joined: March 13th, 2011, 11:36 am

Re: Science videos

#349 Post by Tetenterre » April 25th, 2014, 5:39 pm

26 nuclear-bomb-sized asteroid impacts on Earth since 2000:

Steve

Quantum Theory: The branch of science with which people who know absolutely sod all about quantum theory can explain anything.

User avatar
Dave B
Posts: 17809
Joined: May 17th, 2010, 9:15 pm

Re: Science videos

#350 Post by Dave B » April 25th, 2014, 6:36 pm

Blimey! :shock:
"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."
Me, 2015

User avatar
Sel
Posts: 811
Joined: January 3rd, 2011, 3:53 pm

Re: Science videos

#351 Post by Sel » April 25th, 2014, 8:52 pm

TT: I have been reading about asteroids. It would seem to be a matter of "when" not "if" a major centre will be hit by a large asteroid. We humans may still go the way of the dinosaurs!
"The good life is one inspired by love and guided by knowledge." Bertrand Russell

User avatar
Dave B
Posts: 17809
Joined: May 17th, 2010, 9:15 pm

Re: Science videos

#352 Post by Dave B » April 25th, 2014, 9:09 pm

Sel wrote:TT: I have been reading about asteroids. It would seem to be a matter of "when" not "if" a major centre will be hit by a large asteroid. We humans may still go the way of the dinosaurs!
Not sure about that, yes, if there is a big enough lump of cosmic rock aimed at us to kill all higher life on Earth its bye, bye time.

Humans are pretty tenacious, if the lump is not big enough to produce a total global catastrophe, and the dino-killer was not, there is always the chance that enough humans will survive, somwhere, to keep the race going. OK, back to the Stone Age . . .

The human race was reckoned be down to about 2000 individuals about 150k years ago according to one theory, but we managed to survive.

But it would take a lot less to remove all the handy technology, ability to manufacture drugs etc. that many of us have come to rely on. In evolutionary and genetic terms that might be considered good for the race . . .
"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."
Me, 2015

Compassionist
Posts: 3500
Joined: July 14th, 2007, 8:38 am

Re: Science videos

#353 Post by Compassionist » May 2nd, 2014, 7:19 pm

Here is an interesting video: https://www.youtube.com/watch?v=_YRKmr8U4Bs

User avatar
Dave B
Posts: 17809
Joined: May 17th, 2010, 9:15 pm

Re: Science videos

#354 Post by Dave B » May 2nd, 2014, 8:17 pm

Thanks, Compo, that gave some food for thought.
"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."
Me, 2015

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#355 Post by Alan H » May 7th, 2014, 1:04 pm

Wow!

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#356 Post by Alan H » May 7th, 2014, 1:18 pm

OK, this is an ad for a bank, but still fun:

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Dave B
Posts: 17809
Joined: May 17th, 2010, 9:15 pm

Re: Science videos

#357 Post by Dave B » May 7th, 2014, 9:06 pm

"Look forward; yesterday was a lesson, if you did not learn from it you wasted it."
Me, 2015

Compassionist
Posts: 3500
Joined: July 14th, 2007, 8:38 am

Re: Science videos

#358 Post by Compassionist » May 7th, 2014, 10:16 pm

Dave B wrote:Thanks, Compo, that gave some food for thought.
That's great. :smile: The ad for the bank is the coolest ad for a bank I have ever seen!

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#359 Post by Alan H » May 9th, 2014, 12:23 am

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Alan H
Posts: 24065
Joined: July 3rd, 2007, 10:26 pm

Re: Science videos

#360 Post by Alan H » June 7th, 2014, 11:55 am

Infinitely confusing...but fascinating!

Alan Henness

There are three fundamental questions for anyone advocating Brexit:

1. What, precisely, are the significant and tangible benefits of leaving the EU?
2. What damage to the UK and its citizens is an acceptable price to pay for those benefits?
3. Which ruling of the ECJ is most persuasive of the need to leave its jurisdiction?

User avatar
Sel
Posts: 811
Joined: January 3rd, 2011, 3:53 pm

Re: Science videos

#361 Post by Sel » June 7th, 2014, 3:11 pm

:headbang: my head hurts....too early in the morning to think this hard :)
"The good life is one inspired by love and guided by knowledge." Bertrand Russell

Post Reply