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

Published: Fri, 24 Feb 2017 19:54:27 EST

Copyright: Copyright 2017

Floating Slab or Footings Below Frost Line

Fri, 24 Feb 2017 19:54:27 EST

I have a question. First a little background. My girlfriend wants me to build her a small 8’x10’ garden shed. We were looking into it the past 3-4 years. At first she was looking at the ones you purchase at the big box stores (Rubbermaid), and some that are constructed like at home Depo

Watt Loss Testing - Surge Arresters

Fri, 24 Feb 2017 18:11:46 EST

Good afternoon I would like to express my thanks to anyone that is reading this post. I am writing a testing plan, part of a construction project in a power sub-station, and one of the devices we have to test is a Surge Arrester from Siemens, its technical data is: Ur: 72 kV Uc: 57 kV In: 10 kA

Hard Drive Problem

Fri, 24 Feb 2017 11:21:38 EST

Dear Friends, I have 500GB HDD which was installed from last 2 years & window seven is installed with total two partitions. Now i have problem, BIOS detecting to this drive but system not booting always system saying need to repair with startup disk but whenever i insert window disk after someti

Latching Push-Button Initial State

Fri, 24 Feb 2017 10:14:08 EST

Dear Engineers, I've nicked this neat design for a power-switch of the web. It works as expected with the exception of the initial state. Connecting the 0.1uF capacitor to the power rail should keep the output low, when power is first applied, but it does not. Any suggestions? This is the actual s

How to Get Ultra-low Temperature Like -196 C

Fri, 24 Feb 2017 08:46:39 EST

How to get Ultra-low temperature like -196C

A Justified End to Buzz Word Use?

Fri, 24 Feb 2017 08:07:57 EST

Sometimes what is heard is not what the speaker actually meant to say...

Hide Column in Cross Reference (Contact Image) of Eplan P8

Fri, 24 Feb 2017 07:29:13 EST

In Eplan P8 the cross-references (in the contact image) are shown in the order [Separator]Page(name) [Separator]Column by default. How can we change that? To show Page only... __________________

PC Display Automation

Fri, 24 Feb 2017 02:52:44 EST

Hi guys! I wanted to do a simple project for the start. I wanted to display and customize bingo numbers on the screen every time the ball is picked. I wanted to display the digit outputs only on an extension monitor. The inputs will be hidden on the laptop monitor. What software can you recommend,

What Is It, Where Is It?

Fri, 24 Feb 2017 02:31:50 EST

5G - Coming to a City Near You (Maybe)

Thu, 23 Feb 2017 20:15:53 EST

Verizon Communications Inc said on Wednesday it would offer its high-speed wireless 5G network to certain customers in 11 U.S. cities in the first half of 2017. Verizon will begin pilot testing 5G "pre-commercial services" in cities, including Atlanta, Dallas, Denver, Houston, Miami, Seattle and Was

Could Excelsior-Henderson be Poised for (Another) Rebirth?

Fri, 24 Feb 2017 14:00:00 EST

On December 21, 1999, the Excelsior-Henderson Motorcycle Company, a revival of a once-storied American brand, filed for Chapter 11 bankruptcy after just two model years of production. Now, as RevZilla reports, a Denver-based investment firm believes the time is right for another attempt at an all-ne

Port Controller Aggregator Helps Reduce I/O Routing Requirements

Fri, 24 Feb 2017 05:00:00 EST

The extraordinary adoption and number of design-ins for field-programmable logic arrays (FPGAs) — in many cases, pushing microprocessors, and DSPs aside — has led to an unforeseen outcome: FPGAs are now expected to have an ever-growing number of I/O ports. The Texas Instruments FPC401 is

Resistant Superbugs

Fri, 24 Feb 2017 05:00:00 EST

I remember when I first watched War of the Worlds. I was in high school and already nervous about seeing what I deemed a “scary” movie. The movie was almost over when a huge thunderstorm hit the area and the theater lost power. My friend turned to me and said, “Isn’t this how

Caption This for 2/24/17

Thu, 23 Feb 2017 21:45:00 EST

This week's image: Be sure to vote for your favorite caption!

The $5,000 Challenge, Bathtub, Buick and Zombie Edition

Thu, 23 Feb 2017 14:00:00 EST

There are many reasons why automotive restoration projects don’t always succeed. Sometimes, the hobbyist finds himself over his (or her) head, and frustration overwhelms interest in finishing the car. Other times, it’s a loss of funding, since a new roof takes priority over a weekend dri

Sharp Eyes $7 Billion Plant Investment

Thu, 23 Feb 2017 05:00:00 EST

Sharp will take the lead in the joint construction of a liquid crystal display panel plant in the U.S. with Taiwan's Foxconn Technology Group, an executive at the Japanese electronics maker said. Japan is finalizing a package that it claims will create 700,000 jobs in the U.S. and help create a $450

Oregon’s $1,000 Impact Tax on 20-Year-Old Vehicles Spiked Soon After Introduction

Wed, 22 Feb 2017 14:00:00 EST

Multiple Oregon state legislators said over the weekend that they would not allow a bill that would introduce a $1,000 impact tax on any vehicle older than 20 years to become law. Introduced by the state’s House Committee on Revenue last Thursday, H.B. 2877 would have imposed the tax every fi

Hardening the Infrastructure: Flood-management Controls

Wed, 22 Feb 2017 05:00:00 EST

Engineers must tackle both technical and human-related complexities to ensure the integrity and safety of dams and levees across the country, especially in light of the exceptional pressure put on the Oroville Dam by winter precipitation in mid-February 2017. ------- Editor's Note: This news bri

Guess the Architecture! for 2/21/2017

Tue, 21 Feb 2017 19:00:00 EST

Does anyone recognize this building?

Route 66 Suggested for Country’s Next National Historic Trail

Tue, 21 Feb 2017 14:00:00 EST

On the heels of a bill intended to preserve Route 66 comes another piece of legislation that would secure National Historic Trail status for Route 66 and that would theoretically help preserve and rejuvenate the Mother Road. H.R. 801, which Representative Darin LaHood of Illinois introduced earlier