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Guest Message © 2012 DevFuse

Mr Skeptic's Profile User Rating: *****

Mr Skeptic's Photo
Reputation: 1144 Glorious Leader
Group:
Moderators
Active Posts:
8,630 (5.03 per day)
Most Active In:
Politics (1584 posts)
Joined:
15-September 07
Profile Views:
12,487
Last Active:
User is offline Dec 02, 2011
Currently:
Offline

My Information

Member Title:
iDon't-Believe-You
Age:
27 years old
Birthday:
August 13, 1984
Gender:
Male Male
Location:
Dunkirk, NY
College Major/Degree:
Biology
Favorite Area of Science:
Physics, Biology

Contact Information

E-mail:
Click here to e-mail me
  1. Recent Status Updates
  2. About Me
  3. Topics
  4. Posts

Topics I've Started

  1. Fans, breeze at a distance

    5 June 2011 - 02:27 AM

    OK, so I decided to buy a new fan, and got a physics related question. For the breeze of a fan, should I be looking at the volume per second, at the velocity blown, both of those, or perhaps something like the kinetic energy of the air expelled (ie, (1/2) * volume/second * velocity^2)? Assume I want a good breeze.

    On a related note, I recently bought (but may return) a "high velocity" fan (Lasko 4940), though from looking it up it only has about 350 cubic feet per minute (CFM) on high. However I noticed it produces a decent breeze even at a distance. I think the kinetic energy of the blown air is catching more air along the way and draging it along, producing a stronger breeze at a distance. Anyhow, anyone know how the distance will affect the breeze on a fan with a given volume/second and velocity? Also, anyone know any good fans to buy?

Comments

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  1. Photo

    Dudde 

    31 Mar 2010 - 23:14
    congratulations on the mod sir
  2. Photo

    Mr Skeptic 

    30 Mar 2010 - 11:27
    Thanks!
  3. Photo

    ydoaPs 

    29 Mar 2010 - 03:22
    congrats on becoming a mod
  4. Photo

    dr.syntax 

    03 Nov 2009 - 05:48
    I am saying goodbye to the few friends I have here. You are the most valued of them. I wish you well. It will be a hoot when those AIs emerge. What a time to be alive. It`s amazing, it really is. Goodbye, ...Dr. Syntax
  5. Photo

    dr.syntax 

    31 Oct 2009 - 04:21
    Hello Mr Skeptic, I would like to be on your friends list for many good reasons. If this is agreeable to you, do what you can to make it happen, because I do not Know how to do it. ...Dr.Syntax
  6. Photo

    dr.syntax 

    25 Oct 2009 - 07:09
    Hi Mr Skeptic, I have no idea what a toasty wombel is. Every time I read that name I wonder what it could mean. I get this image of some small creature from Australia roasting over a fire on a stick. You take care my friend, ...Dr.Syntax
  7. Photo

    toastywombel 

    22 Oct 2009 - 01:41
    I have no idea what a wombel is, but there is an interesting story behind the name. . . I use to be a big Starcraft player in my early-teen years.I just came up with the most unique name I could think of after I started my own clan (nerdy I know). I called myself toastywombel-UC. The UC was the tag for my clan, Urban Chaos. After I moved on from Starcraft I kept the name toastywombel as my on-line alias.
  8. Photo

    dr.syntax 

    18 Oct 2009 - 10:34
    Hello Mr.Skeptic, Is what I think of as partial quotes done by cutting and pasting ? If so I will look into it. I have heard that phrase, but never knew what it meant. Thank you again for your help and kindness. ...Dr.Syntax
  9. Photo

    hemantc007 

    14 Aug 2009 - 14:08
    [URL="http://www.scienceforums.net/forum/showthread.php?t=43140"]all the best for "einstien's problem"[/URL] enjoy it.......!!!!!!!!!!
  10. Photo

    PoWn3d_0704 

    08 Jun 2009 - 05:06
    hey... you like physics... any ideas about a mousetrap car?
  11. Photo

    oranphil 

    13 May 2009 - 17:46
    I believe your signature is absolutely true
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