Re: [LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread Narelle Clark
On Fri, 12 Apr. 2019, 1:48 pm David,  wrote:

> On Friday, 12 April 2019 12:52:49 AEST Roger Clarke wrote:
>
> > If the latter, I'd argue that we apply some scepticism to research
> proposals, in the immunotherapy ...
>

>
> > But my point is that we expect payback on public investment.
>
> So what sorts of "payback" would you find acceptable for (a) research into
> General Relativity and (b) immunotherapies?
>


Wi-Fi. $165m+


Narelle



>
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Re: [LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread David
On Friday, 12 April 2019 12:52:49 AEST Roger Clarke wrote:

> If the latter, I'd argue that we apply some scepticism to research proposals, 
> in the immunotherapy area as in all other areas, and make people jump through 
> hoops, initially give them only small amounts of funding, and only give them 
> more as positive outcomes are demonstrated.
> 
> Okay, that's an over-simplification, not least because the human fear of 
> death puts rose-coloured glasses on people when it comes to medical research 
> proposals;  and research funding is subject to bandwagon effects, etc.
> 
> But my point is that we expect payback on public investment.

So what sorts of "payback" would you find acceptable for (a) research into 
General Relativity and (b) immunotherapies?

David

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Re: [LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread Roger Clarke

Just one query.

On 12/4/19 11:24 am, David wrote:
... [lots of interesting stuff ...]

... General Relativity and immunotherapies for cancer come from the same 
intellectual tradition - we don't get one without the other.


Are you proposing that General Relativity Theory is a necessary 
precursor to immunotherapies for cancer, or just a fellow traveller?


If the former, I'll do a Pauline and say 'please explain'.

If the latter, I'd argue that we apply some scepticism to research 
proposals, in the immunotherapy area as in all other areas, and make 
people jump through hoops, initially give them only small amounts of 
funding, and only give them more as positive outcomes are demonstrated.


Okay, that's an over-simplification, not least because the human fear of 
death puts rose-coloured glasses on people when it comes to medical 
research proposals;  and research funding is subject to bandwagon 
effects, etc.


But my point is that we expect payback on public investment.

It's one thing to fund theoretical physicists sitting in offices, using 
whiteboards, and using their share of cheap data-processing facilities.


It's quite another to build dedicated facilities at vast expense, and 
burn large amounts of energy and people's salaries, supporting 
alice-in-wonderland high-science.



--
Roger Clarkemailto:roger.cla...@xamax.com.au
T: +61 2 6288 6916   http://www.xamax.com.au  http://www.rogerclarke.com

Xamax Consultancy Pty Ltd  78 Sidaway St, Chapman ACT 2611 AUSTRALIA 


Visiting Professor in the Faculty of LawUniversity of N.S.W.
Visiting Professor in Computer ScienceAustralian National University
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Re: [LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread David
On Friday, 12 April 2019 10:04:54 AEST Roger Clarke wrote:

> There's been a vast amount of data gathered, which has then been subjected to 
> a massive amount of manipulation, based on models that are based on a series 
> of assumptions, in order to come up with a consolidated set of data that's 
> thought to represent a reality 'a long, long time ago in a galaxy far away', 
> which has then been rendered by graphic artists in order to provide images 
> that reflect longstanding traditions of what light-shows in space ought to 
> look like.

And that's exactly how we build an image of the world right in front of us.  
Photons strike cells on the retina which cause electro-chemical pulses to 
propagate along nerve fibres to the brain, and the pulse frequency is directly 
related to the intensity of stimulation.  (Different aspects of the image, such 
as colour, outline & depth are processed in different areas of the brain too.)  
The same goes for our other senses.  The brain then constructs a perceived 
representation of the world, with blue sky, green grass, and red fire-engines 
out of nothing more than a lot of electro-chemical activity and its current 
neural state.

Purely as a thought experiment and on the basis of what we know now, this could 
all be reproduced in silicon.  If you then asked an electrical engineer whether 
that device had perceptions they'd say no, it's just a lot of hardware which 
generates heat.

So how does our perceived world relate to "reality"?

The answer is that we have no idea.  There are no absolutes.  We have to start 
with what our human condition.

If our image of a black hole is derived from "a vast amount of data gathered, 
which has then been subjected to a massive amount of manipulation, based on 
models that are based on a series of assumptions, in order to come up with a 
consolidated set of data that's thought to represent a reality" then that's 
perfectly consistent with the human condition.


> Vast resources are wasted pursuing the alice-in-wonderland 
> sub-atomic-particle game.  (Encounter error-factor, postulate another 
> backward-spinning entity with negative weight and both positive and negative 
> charge depending on whether the cat is dead, alive or both, etc.  Wait until 
> media have forgotten the last round.  Do it again.  Ad infinitum).
> 
> Now we're wasting vast resources on vastly backwards-looking examinations of 
> background noise, pretending that we'll get to see what the Big Bang looked 
> like.  Or not, as the case may be.

I can't agree!!  Where would our curiosity & imagination be without General 
Relativity and a search for black holes?  In any case General Relativity and 
immunotherapies for cancer come from the same intellectual tradition - we don't 
get one without the other.

David L.

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Re: [LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread Bernard Robertson-Dunn
On 12/04/2019 10:04 am, Roger Clarke wrote:
> On 12/4/19 8:28 am, JLWhitaker wrote:
>> Thank goodness they used planes and harddrives, otherwise they would
>> have REALLY broken the Internet!!
>> https://www.abc.net.au/news/science/2019-04-11/black-hole-event-horizon-telescope-five-things-you-might-miss/10993112
>
>
> Am I the only one shaking my head at the naivete of the media in
> relation to this beat-up?

The data was from radio telescopes. To say it is a photograph is
definitely a bit of a stretch.

The data has been processed to buggery. It probably has some scientific
value, however, most of which is publicity.

-- 

Regards
brd

Bernard Robertson-Dunn
Canberra Australia
email: b...@iimetro.com.au

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Re: [LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread Roger Clarke

On 12/4/19 8:28 am, JLWhitaker wrote:
Thank goodness they used planes and harddrives, otherwise they would 
have REALLY broken the Internet!!
https://www.abc.net.au/news/science/2019-04-11/black-hole-event-horizon-telescope-five-things-you-might-miss/10993112 


Am I the only one shaking my head at the naivete of the media in 
relation to this beat-up?


I like the idea of science, because it calls for scepticism, e.g.

1.  Q.  What colour is a black hole?
A.  Black (or for colour theorists, 'it doesn't have any')

2.  Q1. If all energy in a big region is sucked into a small region,
what electromagnetic signals will escape from it?
A1. None

Q2. What colour does the human body interpret if the eye receives
no electromagnetic signals?
A2. Black (or for colour theorists, 'none')

Meanwhile, the claim that this is the first 'photograph' of 'a black 
hole' could only be true if we take an enormously liberal interpretation 
of what a 'photograph' is.


There's been a vast amount of data gathered, which has then been 
subjected to a massive amount of manipulation, based on models that are 
based on a series of assumptions, in order to come up with a 
consolidated set of data that's thought to represent a reality 'a long, 
long time ago in a galaxy far away', which has then been rendered by 
graphic artists in order to provide images that reflect longstanding 
traditions of what light-shows in space ought to look like.


Vast resources are wasted pursuing the alice-in-wonderland 
sub-atomic-particle game.  (Encounter error-factor, postulate another 
backward-spinning entity with negative weight and both positive and 
negative charge depending on whether the cat is dead, alive or both, 
etc.  Wait until media have forgotten the last round.  Do it again.  Ad 
infinitum).


Now we're wasting vast resources on vastly backwards-looking 
examinations of background noise, pretending that we'll get to see what 
the Big Bang looked like.  Or not, as the case may be.



--
Roger Clarkemailto:roger.cla...@xamax.com.au
T: +61 2 6288 6916   http://www.xamax.com.au  http://www.rogerclarke.com

Xamax Consultancy Pty Ltd  78 Sidaway St, Chapman ACT 2611 AUSTRALIA 


Visiting Professor in the Faculty of LawUniversity of N.S.W.
Visiting Professor in Computer ScienceAustralian National University
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[LINK] The black hole image came thanks to student Katie Bouman, half a tonne of hard drives and a big coincidence - Science News - ABC News

2019-04-11 Thread JLWhitaker
Thank goodness they used planes and harddrives, otherwise they would 
have REALLY broken the Internet!!


https://www.abc.net.au/news/science/2019-04-11/black-hole-event-horizon-telescope-five-things-you-might-miss/10993112

Jan

--
Melbourne, Victoria, Australia
jw...@janwhitaker.com
Twitter: @JL_Whitaker
Blog: www.janwhitaker.com

Sooner or later, I hate to break it to you, you're gonna die, so how do you 
fill in the space between here and there? It's yours. Seize your space.
~Margaret Atwood, writer

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Re: [LINK] A simple way to curb the trolls – end their anonymity

2019-04-11 Thread Karl Auer
On Thu, 2019-04-11 at 10:30 +, Stephen Loosley wrote:
> There’s a simple way to curb the trolls – end their anonymity

"Every problem has a solution that is easy, simple and wrong."

Lots of people who haven't really thought about things think there are
all sorts of simple solutions to problems like this.

If we are lucky, they are people nobody pays attention to and their
ill-considered musings have little effect.

If we are unlucky they are a respected personage who has decided to
wing it outside their field of expertise and they get taken seriously,
causing no end of trouble.

Short answer to that particular bit of drivel is that it isn't only
"doctors, teachers, soldiers and so on" that may need the protection of
anonymity. There are many, many more who do. It is unjust to silence
all the people who legitimately need anonymity just to silence the few
who abuse it.

Regards, K.

-- 
~~~
Karl Auer (ka...@biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

GPG fingerprint: 8D08 9CAA 649A AFEF E862 062A 2E97 42D4 A2A0 616D
Old fingerprint: A0CD 28F0 10BE FC21 C57C 67C1 19A6 83A4 9B0B 1D75


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[LINK] A simple way to curb the trolls – end their anonymity

2019-04-11 Thread Stephen Loosley
There’s a simple way to curb the trolls – end their anonymity

By Adrian Chiles  Thu 11 Apr 2019
https://www.theguardian.com/commentisfree/2019/apr/11/simple-way-to-curb-trolls-end-anonymity-adrian-chiles

Free speech allows people to have their say, within reason, but it doesn’t 
guarantee their right to hide their identity

You meet the most fascinating people in football. At the English Football 
League awards this week, I ended up in the hotel bar with an eminent figure in 
the football industry, who is no less eminent in his field of work outside the 
game.

We got talking about social media. He lamented the damage that relentless 
trolling does to the game. My friend has a simple solution: do away with online 
anonymity.

He advocates forcing social media companies to make those who use their 
platforms do so as themselves, their identities authenticated by means of bank 
account details or whatever other means it takes.

I am no great believer in the existence of simple solutions for anything, but 
this seems like a good start to me.

Looking at a definition of free speech on Amnesty International’s website, I 
see nothing about the right to anonymity. To me this says that you have the 
right, within reason, to opine as you see fit, and that is no small thing. But 
you should do so, as far as possible, in your own name.

Plainly, whistleblowers and those with jobs on the line in sensitive areas – 
doctors, teachers, soldiers and so on – need some kind of pass on this one. But 
if the trolls want to troll, it seems a fair bargain to demand that they put 
their born names to their bile.

It might even protect us all from the temptation to give vent to the very worst 
thoughts we all (well, me anyway) have hatching in the darkness of our souls. 
Otherwise, we would end up not being true to our social selves. But where does 
a human’s true-self lie? I hope it’s the version with that human’s name on it. 
If it’s not, we are all doomed.

Cheers,
Stephen
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