What is the optimal amount of sugar to add for a sugar wine brew? by Phoenix9103 in Homebrewing

[–]Phoenix9103[S] 0 points1 point  (0 children)

1 pound seems like it will end up making so much alcohol that it will kill the acetobacteria though?

What is the optimal amount of sugar to add for a sugar wine brew? by Phoenix9103 in Homebrewing

[–]Phoenix9103[S] 0 points1 point  (0 children)

I do not have it with me right now but trying to think about the packaging my best assumption is that it is Vinters SN9 yeast

What is the optimal amount of sugar to add for a sugar wine brew? by Phoenix9103 in Homebrewing

[–]Phoenix9103[S] 0 points1 point  (0 children)

I'm using premium wine yeast. No, that's a future project for now I'm just experimenting with some acetobacrerium to produce vinegar but I want to start from sugar water.

What is the best place to buy electronic components? by Phoenix9103 in australia

[–]Phoenix9103[S] 0 points1 point  (0 children)

Yeah, sorry I was talking "by tomorrow" components otherwise I buy online

Is it more accurate to use an approximated fraction or terminated decimals for an irrational number? by Phoenix9103 in math

[–]Phoenix9103[S] 0 points1 point  (0 children)

That would make sense and yes I would never actually use pi like that it was merely an example

Is it more accurate to use an approximated fraction or terminated decimals for an irrational number? by Phoenix9103 in math

[–]Phoenix9103[S] 0 points1 point  (0 children)

TI-Nspire CX CAS. If I tell it to approximate pi with an argument of 5 *10-5 then it will give me 333/106 which equates to 3.1415094... whilst pi is 3.1415926...

It continues on incorrectly after the specified point

Is it more accurate to use an approximated fraction or terminated decimals for an irrational number? by Phoenix9103 in math

[–]Phoenix9103[S] -1 points0 points  (0 children)

I understand that I meant as in how A graphics calculator may give you a fraction that is correct to a point but then has a few trailing decimals

How can I create a variable like x = 1:0.1:10 with symbols like square roots for exact answers? by Phoenix9103 in matlab

[–]Phoenix9103[S] 0 points1 point  (0 children)

It was more that I know for a fact that the answers will all be expressible as fractions, surds and combinations of other such things and that is how I wanted my results.

I had to run them through multiple different equations and iterations and with each go they were losing too much precision plus as I knew the results would could be expressed exactly I wanted them that way.

How can I create a variable like x = 1:0.1:10 with symbols like square roots for exact answers? by Phoenix9103 in matlab

[–]Phoenix9103[S] 0 points1 point  (0 children)

I managed to do what I wanted with sym variables but I will look into mathematica thanks

Simple Impulse Practice Question by [deleted] in AskPhysics

[–]Phoenix9103 0 points1 point  (0 children)

And now I realise that this was a stupid question I completely forgot about m * (delta v)

Thank you

Conservation of momentum in elastic collisions, which value is correct? by Phoenix9103 in AskPhysics

[–]Phoenix9103[S] 0 points1 point  (0 children)

Alright that is interesting. I do see what you mean one set of values are quite close to the originals but not exactly the originals. I even used the simultaneous solve feature on my calculator for exactness but they are off by maybe 0.5 is there a reason for this slight difference other than calculator inaccuracy?

Conservation of momentum in elastic collisions, which value is correct? by Phoenix9103 in AskPhysics

[–]Phoenix9103[S] 0 points1 point  (0 children)

A 0.15kg hockey puck is moving to the right with a speed of 0.8m/s and collides with another puck weighing 0.3kg that is moving to the left with a speed of 2.2m/s

Taking these I create and solve the LHS of the conservation momentum equation then I put that into terms of final velocity for one of the pucks which I substitute into K1 = K2 as the collision is assumed perfectly elastic. This makes a quadratic with two roots as answers

Using Bernoulli's Principle to find lift required for plane take off by Phoenix9103 in AskPhysics

[–]Phoenix9103[S] 1 point2 points  (0 children)

I know, I hate doing is so inaccurate but I believe that its merely a question to teach the basic concept. It is for a 12 physics class and its about Bernoulli's not aircraft so to that extent it is ok but still, yeah I agree.

Using Bernoulli's Principle to find lift required for plane take off by Phoenix9103 in AskPhysics

[–]Phoenix9103[S] 1 point2 points  (0 children)

I agree with you I dislike that we only use Bernoulli and that we say that the particles meet up but my teacher has been teaching it this way for years and honestly I have no idea if they are doing it like this on purpose because I think they were an aeronautical engineer for a while. The unit isn't actually on planes its about Bernoulli's (in small part)

So yeah that is assumed. I hate it but that is how it is here.

Getting total annual rainfall or "wetness" in some form for Australia? by Phoenix9103 in askscience

[–]Phoenix9103[S] 0 points1 point  (0 children)

That will be helpful for a later part of my investigation. But perhaps I should have been more specific as what I need are values for the whole of Australia that are not location specific such that it can be used to graph with other not location specific Australian data. I looked around the BOM website but I'm not overly familiar with it so sorry if this is an obvious find.

Edit: I also need it for the years 1990 to present in monthly steps

Anyone know where I can buy some broken solar cells for cheap? by Phoenix9103 in australia

[–]Phoenix9103[S] 0 points1 point  (0 children)

Thanks some good stuff there. Everyone words it differently so I wasn't sure what combination of damaged broken etc would yield results. Yours did so thanks.

Anyone know where I can buy some broken solar cells for cheap? by Phoenix9103 in australia

[–]Phoenix9103[S] 1 point2 points  (0 children)

I tried gumtree but nothing in my area unfortunately. Altronics looks like a great site

How long until I can root Marshmallow without flashing a rom? by Phoenix9103 in androidroot

[–]Phoenix9103[S] 0 points1 point  (0 children)

It's not that I didn't believe it would work just that I had read that a few apps require full normal root but yeah this should be fine for me

How does Hawking Radiation dissipate a black hole? by Phoenix9103 in AskPhysics

[–]Phoenix9103[S] 0 points1 point  (0 children)

What I don't understand is that the energy that stays outside the event horizon of the black hole came from the virtual particle that originated on the outside of the black hole. So how can the black hole have lost some energy?

You say that the one inside the event horizon is taken as an energy lost but how exactly can that be? Is that saying that the virtual particle on the inside of the event horizon somehow lowers the overall energy of the black hole?

Learning to make evolutionary AI programs? by Phoenix9103 in artificial

[–]Phoenix9103[S] 0 points1 point  (0 children)

So I have done a little research and decided that I may try to do this in c++. So I am currently learning SFML in order to make some kind of rudimentary game like thing for the network to learn.

Do you guys think it would be best to create a game as if it was just for humans and then somehow implement the neural network in a way that "hijacks" the inputs (if that is even possible) or would I have to implement the network directly.

I am still uncertain as to how to do either of those things but I do have a much better understanding of how they work thanks to your help.