From: Andrew Lorimer Date: Tue, 14 Aug 2018 07:16:01 +0000 (+1000) Subject: update notes X-Git-Tag: yr11~70 X-Git-Url: https://git.lorimer.id.au/notes.git/diff_plain/6e2ee5c133962cdd93170b0b790878a9de0517c2?hp=7c32036cfb0a09f0abda10f80f81408ffcfbe999 update notes --- diff --git a/chem/analysis.md b/chem/analysis.md new file mode 100644 index 0000000..1918069 --- /dev/null +++ b/chem/analysis.md @@ -0,0 +1,37 @@ +# Chemical Analysis + +_Salt - ionic compound formed by acid/base reaction_ + +## Analysis methods + +**Quantitative** - measuring values +**Qualitative** - measuring categories or simple observation of characteristics + +### Electrical conductivity + +- quick and inexpensive +- ionic salts are conductive +- measures combined levels of dissolved salts +- measured in EC units + +### Colorimetry + +- e.g. universal indicator (pH), or chlorine analysis +- colour levels are compared with standards +- colour can be natural or caused by reaction with an added chemical (dye) +- instrumental colorimeter - compares subject with samples of known coloration +- **complment** of a colour is the colour left after original colour is removed from white light (inverse) + +![](graphics/colorimeter.jpg) + +### Gravimetric analysis + +- precipitates are collected and dried +- + +## Stoichiometry + +- analysis of ratios +- calculations based on chemical equations +- can predict relative amount of substances involved in chemical reactions +- chemical equations do not indicate rate or extent of a reaction \ No newline at end of file diff --git a/chem/graphics/colorimeter.jpg b/chem/graphics/colorimeter.jpg new file mode 100644 index 0000000..e53e799 Binary files /dev/null and b/chem/graphics/colorimeter.jpg differ diff --git a/english/quotes.md b/english/quotes.md new file mode 100644 index 0000000..4688181 --- /dev/null +++ b/english/quotes.md @@ -0,0 +1,47 @@ +# _Gattaca_ and _Stasiland_ quotes + +### Character list + +**Miriam** - married to Charlie. Tortured, escaped and rebelled as teenager. +**Julia** - Anna's roommate. Raped & imprisoned. +**Charlie** - dead husband of Miriam +**Hagen Koch** - wall cartographer. rebels against regime because Stasi attempted to end marriage. +**Herr Bohnsack** - former Stasi informant +**Klaus** - singer +**Frau Paul** - mother of Torsten who was taken away from her +**Herr Boch** - former Stasi professor, recruits informants + +## Oppression & discrimination + +[g] "never suffered from the discrimination of a 'utero'" +[g] society looks "so hard for any flaw that after a while that's all you see" +[g] "I'll never understand what possessed my mother to put her faith in God's hands" +[g] "I was never meant for this world" +[g] "everything he needed to get into Gattaca.. except the will to do so" +[s] "we are here to inform you today, that you don't exist any more" - re Miriam +[s] "in this country, any kind of printing is forbidden" - Koch +[s] "there is not unemployment in the GDR" - employment officer to Julia +[s] "I inhabit the grey end of the spectrum" - Miriam +[s] "a choreography of very nasty scouts" re. Stasi informants +[g] "I lent you my body, you lent me your dream" + +## Rebellion + +[s] "instead of shooting cardboard figures we'd have to shoot our own peope" - Herr Bohnsack +[s] "I thought it was something we had to do because they were robbing us blind" - Koch, p.170 +[s] "by 1961, about 2000 people were leaving the East each day" +[s] "if there's no way aroundn it, we just have to crash through somehow" +[s] "I have to leave here forever - I have to leave my family, and I will not see my sisters again, and I have to go to the West" +[s] "I have always had an acute sense of duty to obey the law" - Koch + +## Suffering + +[s] "they break you.. just like fiction" - Miriam +[s] "I will do whatever you ask... but that plate stays there" - Koch +[s] "I went to see him that time, and of course I wanted more" - Frau Paul, re Torsten +[s] "she told himt o go to hell and found a smallish funeral establishment" - Miriam +[s] "they really made sure that I didn't sleep" - Miriam +[s] "I was basically no longer human" - Miriam +[s] "I think I am definitely psychologically damaged" - Miriam +[g] "a child conceinved in love has a better chance of happiness" +[g] "I'd need an awful lot more than a drop if I was going to get anywhere" - Vincent re blood brothers diff --git a/methods/calculus.md b/methods/calculus.md index 2d029fb..fb19fdb 100644 --- a/methods/calculus.md +++ b/methods/calculus.md @@ -24,7 +24,7 @@ Average rate of change between $x=[a,b]$ given two points $P(a, f(a))$ and $Q(b, Tangent to a curve at a point - has same slope as graph at this point. Values for $\Delta$ are always approximations. -Secant - line passing through two points on a curve +Secant - line passing through two points on a curve Chord - line segment joining two points on a curve Instantaneous rate of change is estimated by using two given points on each side of the concerned point. Evaluate as in average rate of change. @@ -37,10 +37,8 @@ Each point $Q_n