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CR4 - Recent Forum Threads and Blog Entries



Recent content from CR4, The Engineer's Place for News and Discussion



Published: Fri, 23 Jun 2017 01:32:50 EST

Copyright: Copyright 2017
 



Help, krohne UFC 6300

Fri, 23 Jun 2017 01:32:50 EST

Hello guys, i have a optisonic 6300 from krohne, but i don't have any idea how to parametize this optisonic. I tried to follow the settings that the manual informs, but when configuring the sensors simply do not give signal. Sorry for the bad english, i'am from brazil. the optisonic



Rotating dwelling with utility hub Challenge of the Month

Thu, 22 Jun 2017 19:14:33 EST

Suppose you wish to build a dwelling that can be rotated by 360 degrees for several reasons: 1. You want high solar input in winter, and do not want low angle roof overhang to block high angle view (in winter). The old Greek way used the angle of the sun to allow light in during winter months, and



Questions Asked of Job Applicants

Thu, 22 Jun 2017 11:58:07 EST

A far cry from the usual "what do you see yourself doing in five years" question.



Technological Progress

Wed, 21 Jun 2017 22:10:02 EST

Technological progress with robotics is wonderful, but not when it means displacing humans. The purpose of using robots is to increase profits for companies and investors at the expense of human workers. I think the use of robots should be confined only to jobs that are impossible to do by humans an



When is AI Coming for Your Job

Wed, 21 Jun 2017 16:47:32 EST

We can see it coming, the day when humans are no longer employable in certain jobs because a robot has become more cost efficient....How long is your job safe? No one can say, but we can make an estimate.... ..."As MIT Technology Review points out, these predictions have a way of coming earlier.



API 6A Blind Flange

Wed, 21 Jun 2017 14:42:34 EST

In API 6A 20th Ed. the 6BX blind flanges have flat backs for sizes starting at 5-1/8". If you need one smaller than that you have to incorporate an extrusion at the back to accommodate a test port, but the port is optional. If you remove the port you don't remove the extrusion (it seems from all the



Degree Calculation

Wed, 21 Jun 2017 12:15:22 EST

I have 36" pipe . I want to evaluate maximum allaowble degree of pipe with 40D



Polaritons, Light of the Future

Wed, 21 Jun 2017 04:22:31 EST

..."Anyone who’s taken any sort of physics knows that light can travel as photons or particles as well as waves. It may be hard to imagine, but under certain conditions, light can actually be turned into another form, a superfluid. In liquid form, instead of halting at an object and illumina



I Need Help Big Time! Civil Engineers Give Me Your Expertise!

Wed, 21 Jun 2017 00:02:52 EST

Hello, if you're reading this, thanks for helping. I'm stuck on two assignments I have been given and I have searched over the internet for days and can't find anything to help me! Below you will find questions that I have been given but do not know how to answer. If anyone knows what the hell to do



Elon Musk Outlines Vision for Colonization of Mars

Tue, 20 Jun 2017 19:32:14 EST

Elon Musk, Founder and CEO of SpaceX, has written a commentary on the challenges and possible solutions in colonizing Mars. The paper below is provides the details. Paper: http://online.liebertpub.com/doi/pdf/10.1089/space.2017.29009.emu This video is just a short summary demonstrating how the jou



Will Big Data Force Changes In Online Behavior?

Thu, 22 Jun 2017 04:00:00 EST

I took a management course in grad school in 2009, and just about the only thing I remember about it was learning about the Hawthorne effect. This was research done at a Chicago factory from 1924-32, in which workers supposedly showed an uptick in productivity while participating in a study examinin



Mo’s Junkyard Curse

Wed, 21 Jun 2017 13:00:00 EST

[Editor’s Note: Jim Van Orden, Richardson, Texas, who brought us the story of Arlington FryBarger’s Pan-American Highway trip a couple months ago, recently reached into his bag of memories for this account of the junkyards he frequented as a New Jersey youth.] Junkyards were my heaven a



Guess the Architecture for 6/20/2017

Tue, 20 Jun 2017 18:00:00 EST

Do you recognize this week’s building? Care to take a guess?



When You Sell Your Goat and Your New Charger is a Lemon

Tue, 20 Jun 2017 13:00:00 EST

In the August 2017 issue of Hemmings Muscle Machines, 1966 Pontiac GTO owner Jim Zievel discusses the events that led to him trading his GTO convertible for something that, in the end, was far more unreliable. Jim Zievel bought a 1966 Pontiac GTO convertible brand new in the spring of 1966. It was



Could Route 66 Be Saved By Recommissioning It?

Tue, 20 Jun 2017 13:00:00 EST

With a couple proposals already on the table to preserve Route 66 ahead of the planned defunding of a critical federal program, another option floated some years ago calls for the reversal of the road’s decommissioning and for adding it back to the country’s numbered highway system. Pri



Woman of the Week – Rija Javed

Tue, 20 Jun 2017 12:37:24 EST

Rija Javed is currently a senior engineer at Wealthfront, and investment services platform. She leads banking and brokerage platforms and many of the company’s major initiatives. She supervises many projects at once, as well as coming up with creative ideas and solutions. Credit: Linkedin



OSHA Mandatory Electronic Injury and Illness Reporting Delayed

Mon, 19 Jun 2017 16:00:00 EST

No Formal Announcement. Why? No Entry in the Federal Register. Why? No Official Statement. Why? Just a tiny little update buried in the middle of the OSHA Injury and Illness reporting Web page. We discovered it while doing some fact checking to make sure that we gave our members advance notice o



Expanded Component Range Brings Harmony to Control Cabinets

Mon, 19 Jun 2017 04:00:00 EST

Gianluca Fanchini, Industry Sector Marketing Manager of RS Components, looks at control cabinet components, and highlights that somehow there is the challenge of consistency when specifying panel hardware, in terms of form, fit and function. From the operational perspective of a machine, the primar



Dynamic NFC Tag ICs Expand into New Applications

Sun, 18 Jun 2017 04:00:00 EST

The near field communications (NFC) ecosystem and associated services expands beyond just payments. NFC enables simplified data exchange, pairing, and wireless connections between two objects when in close proximity to one another. Unlike preceding RFID technology, NFC was designed for applications



Something Tells Me That Wasn’t Brad Pitt

Sat, 17 Jun 2017 04:00:00 EST

It is easy to develop an online relationship in this day and age. Maybe you frequent your favorite band’s fan page and discover a group of like-minded people eager to befriend you, or you have found an online book club that Brad Pitt just happens to also be a member of. Your conversations are