Physics Presentation

Discussion in 'The Lounge' started by goldfish, Jun 27, 2005.

  1. goldfish

    goldfish Lt. Sushi.DC

    w00t, physics!

    I've got to do a presentation in 3 weeks time, and I've got to think of a topic to do it on. Bearing in mind that I've got to explain in laymen's terms (or near as dammit), and therefore I should really understand what I'm talking about, I've come up with a few topics I'm interested in:
    • Somoluminescance - is it fusion?
    • Metalology - Metal Glass - applications of a new material
    • 2.4GHz networking - the science behind it
    • Thermofluid dynamics


    Its tricky, all of the topics I'm interested in, all of them are worth the 3 weeks I can give them. I like the idea of 2.4GHz networking, because I'm good at that anyway and I've been obsessed with it for a good while now, but I'm not sure how good it would look on an application for a mechanical engineering degree. Metal glass is another interesting one, but since Liquid Metal is a commercial product I fear that it might turn into a glorifed advertisment. I could go a bit more general and say "Smart Materials", and how they actually work (for example TiCr, a memory alloy). That'd be good for mechanical engineering AND for an application for corporate sponsorship from a certain F1 company I hope to get on my side ;)

    Any other suggestions are more than welcome, too, if you know of a good topic.
     
  2. rogvalcox

    rogvalcox MajorGeek

    I had a physic class while I was attending Jr. College (back in the day, 10 years ago) and I actually stumped the professor!!

    I ask him if he could explain to me...if heat causes things to expand, then how is it that heat shrinking tubes, that you use for wiring, shrink when you apply heat to it!!!??? :confused: He didn't know what to say!! Maybe he didn't know what heat shrinking tubes were?? I don't know...the guy was a real pompous ass anyway and he was pissed that I embarrased him in front of the whole class!! :D

    I did manage to pass the class, even though I think I was only at class 50% of the time!!

    I hate physics!!!!

    Good luck though!!

    Roger
     
  3. kadavill

    kadavill MajorGeek

    In classical times mecanical engineering was hydraulics,machines,stress,torsion,strength,strain,heat and engines.I would stay with Thermofluid dynamics.btw alloys are more like chemistry to me.But all things are explained much more fundamentally from physics.
     
  4. goldfish

    goldfish Lt. Sushi.DC

    Yeah alloys are materials physics, which is sorta more on the physical chemistry side of things but its still physics :)

    Yes, thermofluid dynamics is good, but I need a really good specific application of it to explain. Its all very well me waffling on about behaviour of a fluid for 15 minutes but its just going to go over the heads of the audience (most of which won't be physics students)
     
  5. sizjam

    sizjam Specialist

    goldy; hydraulics? I don't know anything about these presentations yet, but maybe you should start off with some basic principles before launching into the deep end ;)
     
  6. kadavill

    kadavill MajorGeek

  7. goldfish

    goldfish Lt. Sushi.DC

    Cooling: great idea! :D *jots down on shortlist*
     
  8. goldfish

    goldfish Lt. Sushi.DC

    Right, I decided. I'm doing WiFi. Should be fun and educational, and I already know plenty about it to get started, plus I can do a nice little demonstration on stage using 2 laptops :D
     
  9. Kodo

    Kodo SNATCHSQUATCH

    don't forget to bring a 2.4GHz phone :)
     
  10. Natakel

    Natakel Guest

    I'm reading a book on Quantum theory . . . but I'm just not sure it's when I said it was . . . then. :eek:
     
  11. kadavill

    kadavill MajorGeek

    Which book? :confused:
     
  12. mcadam

    mcadam Major Amnesia

    Best of luck Goldy, sure you will be great at it, physics being your thing! :)
     
  13. Rikky

    Rikky Wile E. Coyote - One of a kind

    When tube is made it starts off as a smaller tube,its heated up,stretched then cooled down as a larger tube,this leaves the stresses still in the tube,when you heat it up again the stresses are released and the tube shrinks.

    I'll leave it to you guys to explain whats going on inside,my physics teacher said the tiny little men inside the tube got warm and cosy,so they curled up into ball and hibernated for the winter. :) Good luck.
     
  14. jarcher

    jarcher I can't handle a title

  15. goldfish

    goldfish Lt. Sushi.DC

    We did that in design. Well, actually, most people sorta glossed over it but being the kinda guy I am I read up on it: It's fairly simple really. Same principle as spot welding, except the electromagnet induces a current which goes in random directions throughout the ferrous material. And of course, current causes heat in a resistive material, therefore the object heats up.

    Anyway, yes, I've been looking up stuff on WiFi, first starting point for me was: Does it use FM or AM? Of course, it uses neither, it uses PM (phase-shift modulation)... *sighs* So I learnt that today :D
     
  16. Rikky

    Rikky Wile E. Coyote - One of a kind

    slightly off topic I'v used every type of welder,but have not yet had the pleasure of using plasma cutter,any idea how one works gold?
     

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