efodorean scrie: Apropo!Nu poti sa ma ajuti sa-mi rezolv o problema pentru un curs:
"Cum puteti determina inaltimea unei cladiri utilizand barometrul?"
Am apelat si la MARIKAJ.Mi-a trimis repede cateva sugestii,dar mi-a sugerat sa mai intreb.Poate ai habar...Multumesc.
Catia
Mai in masura e sa-ti raspunda un profesor de fizica !
Citez de pe un alt forum (din pacate in engleza ! sper sa intelegi)
The following concerns a question in a physics degree exam at the University of Copenhagen:
"Describe how to determine the height of a skyscraper with a barometer."
One student replied: "You tie a long piece of string to the neck of the barometer, then lower the barometer from the roof of the skyscraper to the ground. The length of the string plus the length of the barometer will equal the height of the building."
This highly original answer so incensed the examiner that the student was failed immediately. The student appealed on the grounds that his answer was indisputably correct, and the university appointed an independent arbiter to decide the case.
The arbiter judged that the answer was indeed correct, but did not display any noticeable knowledge of physics. To resolve the problem it was decided to call the student in and allow him six minutes in which to provide a verbal answer which showed at least a minimal familiarity with the basic principles of physics. For five minutes the student sat in silence, forehead creased in thought. The arbiter reminded him that time was running out, to which the student replied that he had several extremely relevant answers, but couldn't make up his mind which to use. On being advised to hurry up the student replied as follows:
"Firstly, you could take the barometer up to the roof of the skyscraper, drop it over the edge, and measure the time it takes to reach the ground. The height of the building can then be worked out from the formula H=0.5g x t squared. But bad luck on the barometer."
"Or if the sun is shining you could measure the height of the barometer, then set it on end and measure the length of its shadow. Then you measure the length of the skyscraper's shadow, and thereafter it is a simple matter of proportional arithmetic to work out the height of the skyscraper."
"But if you wanted to be highly scientific about it, you could tie a short piece of string to the barometer and swing it like a pendulum, first at ground level and then on the roof of the skyscraper. The height is worked out by the difference in the gravitational restoring force T = 2 pi sqrroot (l / g)."
"Or if the skyscraper has an outside emergency staircase, it would be easier to walk up it and mark off the height of the skyscraper in barometer lengths, then add them up."
"If you merely wanted to be boring and orthodox about it, of course, you could use the barometer to measure the air pressure on the roof of the skyscraper and on the ground, and convert the difference in millibars into feet to give the height of the building."
“But since we are constantly being exhorted to exercise independence of mind and apply scientific methods, undoubtedly the best way would be to knock on the janitor's door and say to him 'If you would like a nice new barometer, I will give you this one if you tell me the height of this skyscraper'."
The student was Niels Bohr, the only Dane to win the Nobel prize for Physics.
http://www.computergames.ro/forum/print ... php?t=8595
Mai indrazneste cine sa recleme ceva astazi?Eventual la Protectia consumatorului.Erau reprezentantii Firmei "BRINELL"(AM SCRIS BINE?).Avem profesori de info si chiar multi,mai bine zis multe .O profesoara cam la 40-45 de ani,care este titulara.In rest in fiecare an vin altii,Scoala este mare (1700 de elevi si vreo 100 de cadre didactice).Nu prea avem timp sa ne cunoastem.Inginerul de sistem este un absolvent de Politehnica,dar alt profil,in nici un caz nu Informatica.A facut ceva cursuri de Informatica.
Vorbesti despre destinatia salilor de clasa,laboratoarelor,calculatoarelor ca si cum nu ai lucra in scolile romanesti.Pai nici nu indraznesc sa spun ca vreau sa intru in salile respective.Nici cand trebuie sa intri acolo nu esti binevenit,dar altfel.Uite,de exemplu ,atunci cand au avut elevii d sustinut Atestetul,directiunea ne-a numit pe doua invatatoare sa mergem la "supravegheat".Cand ne-a vazut profa.de info(cum zici tu) a avut o singura remarca:Cu voi ce-i aici?Nu v-am chemat eu!Probabil avea emotii,stiu si eu...In comisie erau si 2 profesoare de la alte scoli.In tot cazul am fost tratate ca si cum nici n-am fi existat.Pai,daca atunci cand trebuia sa fiu acolo nu am fost bine venita,cum sa ma duc sa-i cer permisiunea sa intru in sala cu calculatoare?
O-hoo!Mircea,esti inca prea tanar si ai impresia ca totul e posibil.Imi pare rau ca trebuia sa te dezamagesc,dar inca in scolile noastre nu merg treburile ca la carte,cum ar trebui,ci merg asa,purtate de val.Asta e.Noi "babetele"avem voie sa ne resemnam si sa spunem"asta e",dar voi tinerii nu.De la voi ar trebui sa porneasca initiativa,dar atunci cand in ziua de salar te trezesti cu o suma infima,cand nu exiata motivatia pentru munca de calitate,numai elenul nu aunge ca sa revolutionez invatamantul.Ai nevoie si de "burta plina"(scuze!),mai ai nevoie de o carte,de un spectacol.de cate si mai cate...
Apropo!Nu poti sa ma ajuti sa-mi rezolv o problema pentru un curs:
Carmenica,te invidiez!!!Inca mai poti vasa?Da-mi si mie ceva din dulcele gust al visarii!
