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OriginalGriff6-Jul-15 5:31

6-Jul-15 5:31

24km/s and it's 20 times heavier than the sun? That's a lot of energy getting it moving... OMG | :OMG:

Very nice picture! Thumbs Up | :thumbsup:

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Gary R. Wheeler6-Jul-15 6:49

6-Jul-15 6:49

OriginalGriff wrote:
That's a lot of energy getting it moving

Having a supernova go off right next to you ain't no kid's slingshot.

Software Zen: delete this;

OriginalGriff6-Jul-15 7:06

6-Jul-15 7:06

I know what you mean, but I'd have thought it would shred it rather than accelerate it that much - like trying to push a water balloon out of the way by hitting it with a cricket bat!
Laugh | :laugh:

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Brisingr Aerowing6-Jul-15 8:05

Brisingr Aerowing

6-Jul-15 8:05

Interstellar Physics is WEIRD.

What do you get when you cross a joke with a rhetorical question?

The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.

Do questions with multiple question marks annoy you???

OriginalGriff6-Jul-15 8:08

6-Jul-15 8:08

I know.

I've seen the film.

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OriginalGriff6-Jul-15 8:23

6-Jul-15 8:23

Interestingly, I thought I'd have a rough stab at the math.
20 times mass of sun = 4E31Kg.
Energy to accelerate that mass to 24 km/s = 1.2E40 J
Estimated total output of a supernova = 1-2E44 J
So there is enough there.

But, the supernova energy will be (almost completely) radiated in all directions, so the star needed to catch roughly 1/1000th of the total energy, which is unlikely, since it would have to be pretty damn close to do that (and I'd have thought that tidal effects would have destroyed it long before in that case).
And catching that much energy on one side in a short space of time would be...um...messy, wouldn't it? Laugh | :laugh:

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modified 6-Jul-15 14:37pm.

Gary R. Wheeler6-Jul-15 9:37

6-Jul-15 9:37

The rough calculations just show us that our model is wrong. The real way to solve the issue is to find a binary system with a similar configuration, cause the larger star to supernova, and then watch the results.

I'll get the popcorn ready.

Software Zen: delete this;

OriginalGriff6-Jul-15 9:50

6-Jul-15 9:50

One example doesn't really work - we'll have to do it several times to be sure.

We may need the Dark Star and crew at this rate... Laugh | :laugh:

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Gary R. Wheeler6-Jul-15 11:21

6-Jul-15 11:21

Hmm. I'm thinking more than a Death Star. After all, it only blew up planets (and puny Earth-like ones at that).

Software Zen: delete this;

OriginalGriff6-Jul-15 11:51

6-Jul-15 11:51

Ah, but Dark Star[^] had artificially intelligent ThermoStellar bombs!

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Gary R. Wheeler6-Jul-15 12:21

6-Jul-15 12:21

Now that's just freaking creepy. When I first typed my post, I typed Dark Star and had to go back and fix it. Cue Rod Serling...

Software Zen: delete this;

jeron16-Jul-15 9:17

jeron1

6-Jul-15 9:17

OriginalGriff wrote:
That's a lot of energy getting it moving

I'm guessing that it was already moving that quick and the sudden loss of mass of the companion star caused this star to just keep going in a straight line.

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Resources for a Newbie

Caleb Iott6-Jul-15 4:10

6-Jul-15 4:10

Hello everyone, I am a college student, who has just completed his freshman year in computer science, and I am looking for resources that can help me gain a deeper understanding of computer systems & programming languages. Does anyone know of specific books, articles, Youtube channels, etc, which can help me accomplish this. Thank you.

Bonus Points: Though it is not necessarily programming related, does anyone know of a good mathematics resource for Linear Algebra & Discrete Math: specifically in proof writing? I have to take both courses in the coming fall and winter semesters. I want to get an A in both. If someone could give me a resource recommendation, it would be greatly appreciated.

P.S. Did I post this in the right forum?

OriginalGriff6-Jul-15 4:20

6-Jul-15 4:20

Caleb Iott wrote:
I am looking for resources that can help me gain a deeper understanding of computer systems & programming languages. Does anyone know of specific books, articles, Youtube channels, etc, which can help me accomplish this.

Start here: http://www.codeproject.com/search.aspx?sbo=kw[^] Laugh | :laugh:

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Richard MacCutchan6-Jul-15 4:20

Richard MacCutchan

6-Jul-15 4:20

There are thousands of resources available, but you need to go and look for yourself. First decide what specific items you want to study and then try your local library, CodeProject articles and Google.

Amarnath S6-Jul-15 5:07

Amarnath S

6-Jul-15 5:07

To the second part of your question:

Linear Algebra: Here[^], you'll find four courses on Linear Algebra, including one with video lectures. Choose your pick.

Discrete Math: This[^] is a great course. You'll find video lectures, and also a great textbook, with substantial content on Discrete Math and proofs.

Caleb Iott6-Jul-15 14:41

6-Jul-15 14:41

Thanks

. These are exactly what I've been looking for.

thatraja6-Jul-15 6:41

thatraja

6-Jul-15 6:41

Useful Reference Books[^]

thatraja

Code converters | Education Needed | Improve Everything^New

Caleb Iott6-Jul-15 14:40

6-Jul-15 14:40

Thank you. These look very informative. I will be sure to utilize them

Jeremy Falcon6-Jul-15 7:33

Jeremy Falcon

6-Jul-15 7:33

Caleb Iott wrote:
Hello everyone, I am a college student, who has just completed his freshman year in computer science, and I am looking for resources that can help me gain a deeper understanding of computer systems & programming languages. Does anyone know of specific books, articles, Youtube channels, etc, which can help me accomplish this. Thank you.

Depends on how far down the rabbit hole you want to go. Do you want to understand a programming language or do you want to understand how programming languages are made?

People everywhere will have their personal recommendation for materials, but I think one thing most will agree on is getting and reading this book. Code Complete[^].

Anything else will just depend on which specific area you'd like to focus on.

Jeremy Falcon

Caleb Iott6-Jul-15 14:36

6-Jul-15 14:36

Thank you for your comment & recommendation.

Basically, I want to be able to comprehend the articles featured in my CodeProject newsletter. I would also like to learn how a programming language is made too.

modified 6-Jul-15 20:42pm.

Jeremy Falcon7-Jul-15 4:59

Jeremy Falcon

7-Jul-15 4:59

Well, speaking from what worked for me over the years, basically find a project to work on. Best way to learn is to dive right in. Once you hit a road block start the googling until you get past it. And you'll get some nice shiny software out of it to boot.

Jeremy Falcon

irneb6-Jul-15 20:32

irneb

6-Jul-15 20:32

Actually the best "resource" you have is the internet itself. These days it's all there for you to search. Much more than previously (i.e. "When I was your age we didn't have ..." - showing my age!)

So IMO the best advice is to practise your Google-fu in trying to get the best answers by learning to tweak your keywords so the useless pages are minimized in a google search (or whatever search engine you prefer).

It's so much nicer these days, that I'd have to say I've learnt more in the past decade (or so) through simply searching for reading stuff on the internet than all the books/courses I've read throughout my CS degree and before that - i.e. the late 80s and early 90s.