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Engineerguy videos & audio

Updated 4 days ago

Education
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Bill Hammack's audio and video work emphasizes the creative role of engineers in designing and creating our world. He's a regular commentator on radio - based at Illinois Public Radio in Urbana he's appeared on public radio's premier business program Marketplace, and on Radio National Australia's Science Show. Many engineering, science, and journalistic groups have recognized his work.

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Bill Hammack's audio and video work emphasizes the creative role of engineers in designing and creating our world. He's a regular commentator on radio - based at Illinois Public Radio in Urbana he's appeared on public radio's premier business program Marketplace, and on Radio National Australia's Science Show. Many engineering, science, and journalistic groups have recognized his work.

iTunes Ratings

25 Ratings
Average Ratings
23
1
0
1
0

Well done Bill!

By Sungsurfer949 - Jul 02 2014
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Fantastic work and explanation! Love the Beta vs. VHS in particular. I’ll be tuning in again!

Good explanations!

By Tal32123 - Apr 17 2011
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Makes me happy I'm going to University of Illinois next year!

iTunes Ratings

25 Ratings
Average Ratings
23
1
0
1
0

Well done Bill!

By Sungsurfer949 - Jul 02 2014
Read more
Fantastic work and explanation! Love the Beta vs. VHS in particular. I’ll be tuning in again!

Good explanations!

By Tal32123 - Apr 17 2011
Read more
Makes me happy I'm going to University of Illinois next year!
Cover image of Engineerguy videos & audio

Engineerguy videos & audio

Updated 4 days ago

Read more

Bill Hammack's audio and video work emphasizes the creative role of engineers in designing and creating our world. He's a regular commentator on radio - based at Illinois Public Radio in Urbana he's appeared on public radio's premier business program Marketplace, and on Radio National Australia's Science Show. Many engineering, science, and journalistic groups have recognized his work.

Rank #1: Fiber optic cables

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Bill uses a laser pointer and a bucket of glycol to show how fiber optic cables works, and how engineers use them to transmit signals across the ocean.

Jun 21 2011

5mins

Play

Rank #2: LCD Monitor

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Bill tears down an LCD monitor to show how it works. He describes how liquid crystals are used, the structure of the glass panes, and the thin film transistor (TFTs) that allow for active matrix addressing.

Mar 17 2011

4mins

Play

Rank #3: Hard drive teardown

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Bill tears down a hard drive to show how it stores data. He explains how smooth the disk surface must be for the device to work, and he outlines the mathematical technique used to increase data storage.

Jun 07 2011

5mins

Play

Rank #4: CCD: The Heart of a Digital Camera

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Bill takes apart a digital camera and explains how its captures images using a CCD (charge coupled device). He also shares how a single CCD is used with a color filter array to create colored images. This video is based on a chapter from the EngineerGuy team's latest book Eight Amazing Engineering Stories (Learn more at http://www.engineerguy.com/elements)

May 18 2012

4mins

Play

Rank #5: Cell phone design

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Bill uses a pile of cell phones to illustrate the seven design criteria that shape a mobile device. He outlines the seven basic constrain

Jun 14 2011

4mins

Play

Rank #6: Kodak

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Bill tells the story of how George Eastman invented film. Its use in the Brownie camera revolutionized photography; that it changed the way American families think of themselves and recall their own histories.

Aug 05 2014

2mins

Play

Rank #7: How the Donner Party inspired food packaging

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Bill tells us about packaging, a sub-discipline of engineering that is essential to our society. This radio commentary was originally broadcast on November 30, 2004. Visit this link to view complete list of media attributions http://goo.gl/fmGESM.

Jul 28 2014

3mins

Play

Rank #8: Coffee makers: How baseball put them in our homes

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Bill describes how the household drip coffee maker evolved.
This was originally broadcast on August 29, 2000. Visit this link to view complete list of media attributions: http://goo.gl/fmGESM. Watch the related EngineerGuy video on how a drip coffee maker works: http://www.youtube.com/watch?v=4j4Q_YBRJEI

Jul 08 2014

3mins

Play

Rank #9: How a Lead-Acid Battery Works

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Bill details how a microwave oven heats food. He describes how the microwave vacuum tube, called a magnetron, generates radio frequencies that cause the water in food to rotate back and forth. He shows the standing wave inside the oven, and notes how you can measure the wavelength with melted cheese. He concludes by describing how a magnetron generates radio waves. You can learn more about the microwave oven from the EngineerGuy team's new book Eight Amazing Engineering Stories http://www.engineerguy.com/elements

Jul 03 2012

5mins

Play

Rank #10: What Keeps Nuclear Weapons from Proliferating

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Bill explains that the hardest step is making the proper type of uranium. Weapons and power plants require uranium that contains a greater amount of the isotope uranium-235 than found in natural uranium, which is mostly uranium-238. He outlines the key difficulty in separating the two isotope: They have nearly identical properties. He explains the two key methods for separation: Gas diffusion and centrifuges.

Jun 19 2012

4mins

Play

Rank #11: How an Atomic Clock Works

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Bill shows the world's smallest atomic clock and then describes how the first one made in the 1950s worked. He describes in detail the use of cesium vapor to create a feedback or control loop to control a quartz oscillator. He highlights the importance of atomic team by describing briefly how a GPS receiver uses four satellites to find its position. You can learn more about atomic clocks and the GPS system in the EngineerGuy team's new book Eight Amazing Engineering Stories http://www.engineerguy.com/elements

Jun 12 2012

4mins

Play

Rank #12: How a Laser Works

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Bill shows how the three key characteristics of laser light - single wavelength, narrow beam, and high intensity - are made. He explains the operation of a ruby laser - the first laser ever made - showing how electronic transitions create stimulated emission to give coherent light, and then how the ends of the ruby cavity create a narrow wavelength highly collimated beam. You can learn more about laser in the EngineerGuy team's new book Eight Amazing Engineering Stories

Jun 05 2012

4mins

Play

Rank #13: Anodizing Aluminium (or The Beauty of Corrosion)

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Bill describes how metals like aluminum and titanium are made resistant to corrosion by growing an oxide layer into the metals. These is the same process used on many Apple products. This video is based on a chapter in his book Eight Amazing Engineering Stories.

May 29 2012

4mins

Play

Rank #14: How a Smartphone Knows Up from Down

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Bill takes apart a smartphone and explains how its accelerometer works. He also shares the essential idea underlying the MEMS production of these devices

May 22 2012

4mins

Play

Rank #15: How smoke detectors work

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Bill takes apart a smoke detector and shows how it uses a radioactive source to generate a tiny current which is disrupted when smoke flows through the sensor. He describes how a special transistor called a MOSFET can be used to detect the tiny current changes.

Mar 08 2011

3mins

Play