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Calculus! For beginners, with a ‘no theorems’ approach!
$$y = \int (x-1)x^2dx$$
$$(x-1)x^2dx$$
$$=(x-1)dx^3$$
$$=dx^4-dx^3$$
$$=dx(x^3-x^2)$$
$$=(x^3-x ...
6-4-2016 at 13:45
by: aga
extraction of copper nitrate
Currently there is a 250ml beaker of aqueous copper nitrate in my lab which i attempted to recrystal ...
6-4-2016 at 13:01
by: aga
government restrictions why bother
Once i found out where to look, i can easily get bulk qtys of the three principle acids at a good co ...
6-4-2016 at 12:51
by: aga
Beginner posts
[rquote=444522&tid=65839&author=Jstuyfzand]it would be great to have some kind of tutorial b ...
6-4-2016 at 12:36
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=444520&tid=65532&author=blogfast25]Compute:
$$\int (x-1)x^2dx$$
[/rquote]
I will ...
6-4-2016 at 12:27
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
Oh dear. I think i should give up .....

... imagining that i 'get it' regarding to the chain rule ...
6-4-2016 at 10:28
by: aga
Where is the library?
The SM Library is cunningly hidden amongst a vast array of 6 other options ;)

http://library.scie ...
6-4-2016 at 10:08
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
'Gambino' was Tony ? We mistook him for a prawn and ate him.

The dorm Rules state that all moveab ...
6-4-2016 at 04:38
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
$$y=\int xdx -\int 1dx=\frac12 x^2-x+C$$
Oh ! I See now !

I treat the 'dx' term as a whole unit, ...
5-4-2016 at 13:41
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
[quote]... in no way does it follow that 'dx is 1'.

Will hold my horses for now... :)[/quote]
$$ ...
5-4-2016 at 13:34
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
Phew ! Great.

One last bit and i think i'll get it :

$$\int dy = \int (x-1)dx$$
$$y = \int (x ...
5-4-2016 at 12:45
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
The bit that i'm still failing to understand is the dx/dy thing, so a step backwards is required.

...
5-4-2016 at 09:30
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
erm, so the bits before the dx have to be 'simple' as in no operators like +,-/sin,tan etc or you go ...
4-4-2016 at 14:33
by: aga
Calculus! For beginners, with a ‘no theorems’ approach!
So, if it's just 'applying the rules', with immense trepidation, the Exercises ...

1. (cribbed fr ...
4-4-2016 at 12:24
by: aga
When Chemistry Goes Wrong
[rquote=444046&tid=63645&author=The Volatile Chemist]Yesterday I was trying to ignite a ball ...
3-4-2016 at 14:46
by: aga
It finally happened, the police showed up
I had to google what a 'hackerspace' is.

So your lab is in a [i]shared[/i] space where Other Peop ...
3-4-2016 at 14:07
by: aga
Complex Picrate Salts
[rquote=444206&tid=23573&author=a nitrogen rich explosive]Tetramine Copper Picrate. May I su ...
3-4-2016 at 14:01
by: aga
Bad Habits In The Lab
If cigarettes/beer/coffee were banned from my lab, it'd be Empty.

Well, Full of cool Stuff, just ...
2-4-2016 at 14:01
by: aga
Gas Chromatography
Spam. 100%.

No way you'd use antifreeze or chain oil in your GC.
2-4-2016 at 13:55
by: aga
Method for preparing anhydrous aluminium chloride
Why are people so Cl[sub]2[/sub] averse ?

OK, it can kill you, but so can a moving Car, or an irk ...
2-4-2016 at 13:42
by: aga
Glassware Organization
Aha ! A fellow recycler of broken glass stirring rods ?

I snap them up and make boiling chips, t ...
2-4-2016 at 13:31
by: aga
chem.pieceofscience.com - editor wanted
[rquote=444095&tid=65509&author=Hegi]Experimenters are WANTED as well. We do experiments and ...
2-4-2016 at 13:24
by: aga
new compounds for making hobby chemicals
In what way are these compounds 'New' ?

I fail to see the point in this thread, but that may be b ...
2-4-2016 at 13:13
by: aga
Drying Acetic Acid?
[rquote=444137&tid=65803&author=Sulaiman]...
I'll be quiet now[/rquote]
I once thought tha ...
2-4-2016 at 13:10
by: aga
Recent Actual Physical SM Chemistry
This thread basically died after post #2.

What i'm in the process of doing is building a searchab ...
2-4-2016 at 11:21
by: aga
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