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Diego Fonstad

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Blog entries tagged in Engineering

Mechanical gears found in living creature

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 16 September 2013
in Images that speak for themselves

insectgearmov

Teachable Moment: This is a great example of inadvertent biomimicry... we didn't even know that insects had already evolved a gear system long before we did!

insect-leg-gears-1Scientists in the United Kingdom have discovered an insect that uses a gear mechanism to jump.  They hypothesize that the mechanical advantage from the gear system enables them to jump quickly with

References:      Popular Mechanics web site  http://www.popularmechanics.com/science/environment/the-first-gear-discovered-in-nature-15916433?click=pm_latest

Laminar Flow

Posted by Diego Fonstad
Diego Fonstad
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on Saturday, 13 October 2012
in Videos worth watching

laminar flowTeachable Moment: Great science experiments are indistinguishable from magic and this little video is a wonderful example using viscocity to demonstrate laminar flow.

As explained on the web site: http://panda.unm.edu/flash/viscosity.phtml

The Reynolds number R is the dimensionless combination:

              R= ρνR
η

in which ρ is the density, ν the speed of the fluid, R the size of the flow, and η the viscosity. When R ≤ 1, friction dominates inertia and the fluid flows in layers (laminar flow).Here we are using corn syrup which has a viscosity of 5 (Pa s); its viscosity is 5000 times that of water, and the Reynolds number R is less than unity.This experiment is being demonstrated by Kevin Cahill for his Biophysics II students.The couette cell used in this experiment was fabricated by John DeMoss in the Machine Shop of the Department of Physics and Astronomy at the University of New Mexico.

Tags: Engineering
Hits: 18941

How Stuff Works

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Saturday, 13 October 2012
in Online Resources

howstuffworksTeachable Moment: Many answers are a bit simplified but generally a great little web site to explore.

Reference: http://www.howstuffworks.com/

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Cracking the egg sprinkler mystery

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Wednesday, 13 June 2012
in Videos worth watching

Teachable Moment: This video illustrates how asking "why" can lead to novel discoveries even around phenomena many others have already observed.

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Thomas Edison's To Do List

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Wednesday, 13 June 2012
in Images that speak for themselves

 

Teachable Moment:  Edison's wonderfully eclectic task list is a reminder that we can risk stifling creativity and innovation if we insist people focus on one task at a time.  Of course, the challenge then becomes competing those tasks.

Reference: http://edison.rutgers.edu/NamesSearch/SingleDoc.php3?DocId=NA021AAF

Tags: Engineering
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EngineerGuy.com

Posted by Diego Fonstad
Diego Fonstad
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on Sunday, 10 June 2012
in Online Resources


Teachable Moment:
Great videos that explain advanced engineering concepts in everyday devices. I especially like the tear down videos.

Make called Bill a "brilliant science-and-technology documentarian", whose "videos should be held up as models of how to present complex technical information visually" Wired called them "dazzling." Scientific American's blog called him a "smart, easygoing everyman with a firm understanding of the science." You can see 10 of his best videos below. He takes apart an LCD monitor, demonstrates how fiber optic cables work, rips up a hard drive, explains the wonder of a quartz wrist watch, solves the mystery of black boxes, blows up a light bulb filament, reveals how amazing a pop can tab truely is, shows why a cell phone looks like it does, and explains why you always seem to be in the slowest line.

Reference: http://www.engineerguy.com/

Tags: Engineering
Hits: 29959

MIT +K12

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Saturday, 09 June 2012
in Online Resources

Teachable Moment: Sometimes the best person to teach a challenging concept is someone who has recently learned it and wants to share their own excitment of the discovery. I can't wait to see this video library grow.

 

MIT has launched an initiative encouraging its students to produce short videos teaching basic concepts in science and engineering. The videos — aimed at younger students, in grades from kindergarten through high school — will be accessible through a dedicated MIT website and YouTube channel. A subset of the videos will also be available on Khan Academy, a popular not-for-profit educational site founded by an MIT alumnus.

References: http://k12videos.mit.edu/

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Seven Equations that Rule Your World

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 26 March 2012
in Videos worth watching

Equations that Rule your World logoTeachable Moment: This is a great synthesis of how a series of clearly important, yet seemingly disparate, equations have been used together to provide us modern conveniences.

Without equations, most of our technology would never have been invented. Of course, important inventions such as fire and the wheel came about without any mathematical knowledge. Yet without equations we would be stuck in a medieval world.

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Einstein Archives Online

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 19 March 2012
in Images that speak for themselves

Teachable Moment: Anyone interested in history of science would love these archives.  From his notes deriving his famous equation to his love letters this is a treasure trove of information that humanizes this great scientist.

The Einstein Archives Online Website provides the first online access to Albert Einstein’s scientific and non-scientific manuscripts held by the Albert Einstein Archives at the Hebrew University of Jerusalem, constituting the material record of one of the most influential intellects in the modern era. It also enables access to the Einstein Archive Database, a comprehensive source of information on all items in the Albert Einstein Archives.

DIGITIZED MANUSCRIPTS

From 2003 to 2011, the site included approximately 3,000 high-quality digitized images of Einstein’s writings. This digitization of more than 900 documents written by Einstein was made possible by generous grants from the David and Fela Shapell family of Los Angeles. As of 2012, the site will enable free viewing and browsing of approximately 7,000 high-quality digitized images of Einstein’s writings. The digitization of close to 2,000 documents written by Einstein was produced by the Albert Einstein Archives Digitization Project and was made possible by the generous contribution of the Polonsky Foundation. The digitization  project will continue throughout 2012.

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Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Wednesday, 07 March 2012
in Images that speak for themselves

Teachable Moment: Science fiction has always tried to envision the "what's possible" and its great to see what they've gotten right...

Click to open in a new window and enlarge.

fiction-to-reality-time-line-675

 References: http://visually.visually.netdna-cdn.com/TheFictiontoRealityTimeline_4f54e84f1553f.jpg

Hits: 44876