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Motor Protection

03/26/2017
posted in Electrical Engineering
by sobanbabu76
Please provide typical Calculation for thermal overload, Ke, Excess long start, Forbidden start in motor
Views: 27, Comments: 1
Last comment 03/26/2017 by SolarEagle
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Soviet Cover-up of Nuclear Fallout Worse than Chernobyl

03/26/2017
posted in General Discussion
by Andrew Westman
It was a nuclear disaster four times worse than Chernobyl in terms of the number of cases of acute radiation sickness, but Moscow’s complicity i...
Views: 34, Comments: 2
Last comment 03/26/2017 by SolarEagle
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Insulation Between ID FAN and Chimney

03/26/2017
posted in Mechanical Engineering
by pradeep4u
Dear All I want to know why there is insulation required between ID fan and chimney. In my plant there is insulation between ID fan and chimney. There...
Views: 30, Comments: 3
Last comment 03/26/2017 by TonyS
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Expansive Soil Issues

03/25/2017
posted in General Discussion
by Jazzman
Hi All, When pouring concrete over medium expansive soil in this area , engineers recommend overdigging 3 - 4 ft , mixing with a certain % water , and...
Views: 41, Comments: 5
Last comment 03/26/2017 by SolarEagle
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Laptop Battery Life

03/25/2017
posted in Electrical Engineering
by gutmonarch
Is it necessary to unplug the power cord of a laptop if battery is fully charged? As my observation and my peer's, unplugging the power cord when the...
Views: 54, Comments: 6
Last comment 03/26/2017 by redfred
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International Summer School – Advanced Urban Design

03/25/2017
posted in Education
by moabdallah
IEREK in collaboration with Ain Shams university – Cairo will host a two-week summer school in advanced urban design. The course will deal with...
Views: 33, Comments: 0
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Anyone Ever Seen a 16-position Rotary Switch with 4-bit Binary Output?

03/24/2017
posted in Electrical Engineering
by wannabecontroller
Looking for a 16 position switch that has a 4 bit output so 4 output lines that would feed a plc to tell the plc which position has been selected. A...
Views: 187, Comments: 14
Last comment 03/25/2017 by jhhassociates
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How Logical Are You?

03/24/2017
posted in General Discussion
by Rixter
Given the proposition that "even number cards have blue on the opposite side", how many and which cards would you need to turn over to verify this?...
Views: 255, Comments: 33
Last comment 03/26/2017 by phph001
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New Finding...Nearly 2/3 of Cancer Caused by Natural Mutations

03/24/2017
posted in General Discussion
by SolarEagle
"Cancer is caused by mistakes in DNA, and a new study finds that in most cancer cases, these mistakes are completely random; they're not due to heredi...
Views: 226, Comments: 71
Last comment 03/26/2017 by SolarEagle
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Scratch Marks Over Stainless Steel

03/23/2017
posted in Manufacturing
by Anonymous Poster
I am working at a company manufacturing knives using SS420-J2 grade material. After stamping knife blades, we do heat treatment of the same before gri...
Views: 385, Comments: 48
Last comment 03/26/2017 by wrenchtwirler
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Dripless Wine Bottle

03/23/2017
posted in General Discussion
by BestInShow
Reading this article from Brandeis University makes me wonder why no one, in the history of the wine bottle, has thought of this. Probably works for t...
Views: 223, Comments: 23
Last comment 03/25/2017 by SolarEagle
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Carbon Brushes

03/23/2017
posted in Electrical Engineering
by Andrew Rushton
Hi can anyone tell me what the affect would be if you had slightly different sized carbon brushes in a dc motor. The motor is from a mobility scooter....
Views: 261, Comments: 24
Last comment 03/25/2017 by TonyS
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Self-Driving Cars

03/23/2017
posted in New Technologies & Research
by gskurdal4u
A post stated 87% of Americans claim a fear regarding self-driven cars. This is understandable. Computers operate those cars and computers, for phones...
Views: 160, Comments: 43
Last comment 03/26/2017 by ronseto
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Combustion Fan Booster

03/22/2017
posted in General Discussion
by 4wsilver
This could be either for mechanical or electrical engineering but is probably a little basic for either. I have a small diesel combustion device inte...
Views: 232, Comments: 39
Last comment 03/23/2017 by Andy Germany
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What Is Output Bias In Control Valve Positioner?

03/21/2017
posted in Instrumentation
by Eng_Ahmed
after installing a new control valve positioner (fisher DVC6200) & while making auto travelling it stopped at stage "adjusting output bias" and d...
Views: 237, Comments: 35
Last comment 03/23/2017 by James Stewart
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Sticking to Neural Tissue

03/26/2017 posted in Medical Equipment Design
by Engineering360 eNewsletter
The ability to interface with neural tissues is enabling a new range of health interventions. Researchers have developed a method for effectively conn...
03/26/2017 Views: 14, Comments: 0
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Laser Engraving Tips from the Experts

03/26/2017 posted in Light & Laser Blog
by Epilog Laser
Need recommendations for solid hardwood engraving? Nervous about etching glass? Looking for inexpensive substrates to play around with? Experts fro...
03/26/2017 Views: 21, Comments: 0
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A Growing Role for Automated Pipeline Pigging Systems

03/25/2017 posted in Material Handling & Supply Chain Technology
by Engineering360 eNewsletter
Pigging is a routine maintenance procedure that plays a critical role in oil and gas pipelines for mitigating and monitoring internal corrosion, and f...
03/25/2017 Views: 61, Comments: 0
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Toilet Seat Covers and You

03/25/2017 posted in The Engineer's Notebook
by M-ReeD
Before I start, I’d like to apologize for yet another toilet-centric blog post. Your college roommate; your high-school best friend; your mothe...
03/25/2017 Views: 168, Comments: 10
Last comment 03/26/2017 by Stuart21
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Caption This for 3/24/2017

03/24/2017 posted in Caption This!
by MaggieMc
This weeks image: Be sure to vote for your favorite caption! Thanks to Nigh for the submission, we're always looking for more!
03/24/2017 Views: 192, Comments: 22
Last comment 03/25/2017 by SolarEagle
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Innovation, Part II: What Makes an Innovative Individual?

03/24/2017 posted in The Engineer's Notebook
by MaggieMc
On Wednesday, I told you about a paper in Vol. 18 of Technology and Innovation, written by Victor Poirier and a whole slew of his colleagues, specific...
03/24/2017 Views: 78, Comments: 7
Last comment 03/25/2017 by tcmtech
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Extended Robot Arm for Greater Welding Reach

03/24/2017 posted in Machine Tools & Metal Working Blog
by Engineering360 eNewsletter
A new robot arm with a 3.3 m reach promises greater joint access on large parts and weldments in automated welding applications. The offering from Wis...
03/24/2017 Views: 39, Comments: 0
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Bantam Goes to Holabird: The Test That Convinced the Army of the Jeep’s Potential

03/23/2017 posted in Hemmings Motor News Blog
by dstrohl
[Editor’s Note: There perhaps aren’t too many people as or more qualified to chronicle the history of the Bantam Reconnaissance Car and th...
03/23/2017 Views: 166, Comments: 7
Last comment 03/24/2017 by James Stewart
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Do-it-Yourself Camera Detects Land Mines

03/23/2017 posted in Light & Laser Blog
by Engineering360 eNewsletter
The DOLPi is an affordable Raspberry Pi-based polarization camera that can be used to see polarized light. Users gain the ability to detect unseen obj...
03/23/2017 Views: 159, Comments: 18
Last comment 03/26/2017 by Andrew Westman
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Innovation, Part I: What Does It Really Look Like?

03/22/2017 posted in The Engineer's Notebook
by MaggieMc
Perhaps I wasn’t paying proper attention before, but it seems that more and more we’re becoming obsessed with the idea of innovation. To b...
03/22/2017 Views: 300, Comments: 33
Last comment 03/24/2017 by James Stewart
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First Hardtop Mustang by Serial Number to Get its Moment in the Spotlight

03/22/2017 posted in Hemmings Motor News Blog
by dstrohl
Such indignity. Dispatched to remote Canada, passed over, and left to sit on a dealership showroom for a year before it sold, the first hardtop Mustan...
03/22/2017 Views: 180, Comments: 0
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How 3D Printing Could Save Lives

03/22/2017 posted in Lab Equipment Blog
by Engineering360 eNewsletter
In the past decade, engineers at the University of California San Diego have 3D-printed a variety of devices ranging from rocket engines, to robots, t...
03/22/2017 Views: 45, Comments: 0
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Guess the Architecture! for 3/21/2017

03/21/2017 posted in Guess the Architecture
Does anyone recognize this week's building?
03/21/2017 Views: 363, Comments: 16
Last comment 03/23/2017 by James Stewart
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Woman of the Week - Françoise Barré-Sinoussi

03/21/2017 posted in WoW Blog (Woman of the Week)
by lmno24
Françoise Barré-Sinoussi is a French virologist who has performed significant work in the identification of human immunodeficiency virus...
03/21/2017 Views: 198, Comments: 0
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Reminiscing – My Daddy’s Thunderbird

03/21/2017 posted in Hemmings Motor News Blog
by dstrohl
[Editor’s note: This “Reminiscing” story, edited by Richard Lentinello, comes to us from Hemmings Classic Car reader Al Hirth of Pue...
03/21/2017 Views: 166, Comments: 1
Last comment 03/25/2017 by SolarEagle
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