Posted February 25, 2007 I've done that experiment about 4 times. its stupid that i could write out a full practical report now without even looking at anything and just faking some results. A nicer experiment to demonstrate the same osmotic principle, with better design (although only qualitative) is as follows: Get 5 different concentrations of salt solution (0M, 0.2M, 0.4M, 0.6M, 0.8M and 1M works well). Now cut little strips from a celery stick, in the direction of the stem. Due to the waxy cuticle on top, and the turgid cells beneath, the strips will bend back a little. Now if you leave a strip in a petri dish of each solution for half an hour or so, you'll end up with each strip being bent a different amount depending on the solution. This looks quite impressive. Share this post Link to post Share on other sites
Posted February 25, 2007 Anyone do/has done A Level German? Anyone want to help me with my coursework? Share this post Link to post Share on other sites
Posted February 25, 2007 I've done that experiment about 4 times. its stupid that i could write out a full practical report now without even looking at anything and just faking some results. In your A-level report you can get 18/20 in your practical exam thingy through doing exactly that. You'd get 20/20 if you made up results show the right values. (seriously, I'm not joking look a the mark scheme. 7 marks for a good table with correct headings number of d.p etc. Its a joke of an exam) Share this post Link to post Share on other sites
Posted February 25, 2007 In your A-level report you can get 18/20 in your practical exam thingy through doing exactly that. You'd get 20/20 if you made up results show the right values. (seriously, I'm not joking look a the mark scheme. 7 marks for a good table with correct headings number of d.p etc. Its a joke of an exam) If only A level chemistry coursework was like that... Instead, I have to work out the mechanism for a reaction which has not yet been discovered as it is too complex. Share this post Link to post Share on other sites
Posted February 25, 2007 If only A level chemistry coursework was like that... Instead, I have to work out the mechanism for a reaction which has not yet been discovered as it is too complex. I have no sympathy for you, as your mention of GO in another thread has caused me to go read all those sites about it because I've always wanted to play. Now I haven't done all the work I was suposed to do and am going to have another sleepless night. I blame you :P Share this post Link to post Share on other sites
Posted February 25, 2007 I have no sympathy for you, as your mention of GO in another thread has caused me to go read all those sites about it because I've always wanted to play. Now I haven't done all the work I was suposed to do and am going to have another sleepless night. I blame you :P Ah well, I look forward to playing go with you instead of doing homework. Share this post Link to post Share on other sites
Posted February 26, 2007 Anyone do/has done A Level German? Anyone want to help me with my coursework? I think I could help you. I have no idea what A Level German is, however, as it's my native language I think I should be able to help out. Share this post Link to post Share on other sites
Posted February 26, 2007 Can any German speakers help me? How do you say something like: "I hope to hear back from you soon" Or something similar. Thanks for any help! Share this post Link to post Share on other sites
Posted February 26, 2007 Ich hoffe bald wieder von dir zu hören. Share this post Link to post Share on other sites
Posted February 26, 2007 If only A level chemistry coursework was like that... Instead, I have to work out the mechanism for a reaction which has not yet been discovered as it is too complex. I like mechanisms. Hit me...I might even be able to suggest something feasible :p Share this post Link to post Share on other sites
Posted February 26, 2007 Thanks Konfucious. I'm alright for the time being, I think I should be okay from now on as well. But if I need help I'll come to you if thats alright. Cheers mate. Share this post Link to post Share on other sites
Posted February 27, 2007 I like mechanisms. Hit me...I might even be able to suggest something feasible :p Hmph... unfortunately, I've got to work it out myself. Thanks though. Share this post Link to post Share on other sites
Posted February 27, 2007 Could someone help me with this: Share this post Link to post Share on other sites
Posted February 27, 2007 We want friction to be just limiting, so F = uR = R/2. F = Tcos30 = Tsqrt(3)/2 R = Tsin30 + 5g = T/2 + 5g therefore: Tsqrt(3/2) = T/4 + 5g/2 And solve that. Share this post Link to post Share on other sites
Posted February 27, 2007 We want friction to be just limiting, so F = uR = R/2. F = Tcos30 = Tsqrt(3)/2 R = Tsin30 + 5g = T/2 + 5g therefore: Tsqrt(3/2) = T/4 + 5g/2 And solve that. ....marry me.... Share this post Link to post Share on other sites
Posted February 27, 2007 ....marry me.... I'll pass... :wink: If anyone saw my post before I edited it, I forgot about the 5kg at first and got it wrong, so appealed to Ginger_Chris for help. Share this post Link to post Share on other sites
Posted February 28, 2007 OK, I need all your native speaking help here, please. I'm looking for a word (English duh), that describes an issue that does not really matter. Like you would say "We shouldn't be discussing this issue because it's a(n) [insert word here]." For Dutch speakers reading I need the exact translation for 'randzaak'. Share this post Link to post Share on other sites
Posted February 28, 2007 OK, I need all your native speaking help here, please. I'm looking for a word (English duh), that describes an issue that does not really matter. Like you would say "We shouldn't be discussing this issue because it's a(n) [insert word here]." For Dutch speakers reading I need the exact translation for 'randzaak'. If you want to be idiomatic and slightly old fashioned, you could say "it's a trifle". In fact, "it's trival" works just as well but doesn't carry the antiquated connotations. Share this post Link to post Share on other sites
Posted February 28, 2007 Thanks, but I'm not sure those are the words I need (irrelevant doesn't necessarily describe a matter of discussion) as it's supposed to be quite formal. Is trival formal enough? Share this post Link to post Share on other sites
Posted February 28, 2007 Thanks, but I'm not sure those are the words I need (irrelevant doesn't necessarily describe a matter of discussion) as it's supposed to be quite formal. Is trival formal enough? Yes, I think trivial is fairly formal. OED says: Of small account, little esteemed, paltry, poor; trifling, inconsiderable, unimportant, slight. Share this post Link to post Share on other sites
Posted February 28, 2007 Okay, thanks so much. I knew there was a single word for what I meant, I just couldn't find it Share this post Link to post Share on other sites
Posted February 28, 2007 What i hate about nearly every language that isn't English is the fact of 'masculin' and 'feminin'. Oh, and neutral. I'm alright at a-level German though. Doing Zoology studying now, quite essential in some cases of the job. It is also quite easy and I LOVE it!!! Most schools don't teach it though... Share this post Link to post Share on other sites
Posted February 28, 2007 If you really hate remembering things like gender, then try Japanese- no gender, no plurals, only present and past, and verbs don't conjugate for persons. Share this post Link to post Share on other sites
