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Keyword: engineering

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  • Let Me Show You A Bridge That Deserves To Be Put In An Art Museum

    06/04/2022 11:48:45 AM PDT · by American Number 181269513 · 38 replies
    Medium.com ^ | June 4, 2022 | Mireïa
    Our lives are inevitably bound by and shaped by the structures around us. We live in them, calling them homes; we go through them, calling them tunnels; we move on them or thanks to them, calling them roads, or bridges. Salginatobelbrücke designed by Robert Maillart, 1930The bridge has a particularly interesting function: it connects two places in a more complex way than a road does. The bridge helps to elevate the passenger, allowing them to move above a body of water, a valley, or a three-dimensional urban labyrinth of roads and crossings. But apart from being a beacon of utility,...
  • Toll road authority explains $300 million 'fix' for Ship Channel Bridge project

    03/25/2022 11:53:17 AM PDT · by Tolerance Sucks Rocks · 18 replies
    FOX 26 News ^ | December 7, 2021 | Tom Zizka
    HOUSTON - The Harris County Toll Road Authority now has an expensive plan to fix design flaws in its billion-dollar replacement of the Ship Channel Bridge. The original structure was finished in 1982. But, with just two lanes in each direction and no shoulder for emergencies, construction on a replacement was started in 2018. HCTRA’s Executive Director Roberto Trevino was hired after flaws were discovered in the design, and he says the danger could have been catastrophic. "It could have collapsed," he says. Trevino says the county wanted the new bridge to be sleek and iconic, resembling the Fred Hartman...
  • The Engineering of the Drinking Bird

    03/06/2022 2:09:04 PM PST · by Rebelbase · 28 replies
    Youtube ^ | Current | The Engineer Guy
    Bill reveals the operation and engineering design underlying the famous drinking bird toy. In this video he explores the role played by the water the bird "drinks," shows what is under the bird's hat and demonstrates that it can operate using heat from a light bulb or by "drinking" whiskey. Video Here.
  • Were Roman Roads more Durable than Modern Highways?

    02/12/2022 2:36:52 PM PST · by SunkenCiv · 45 replies
    YouTube ^ | February 4, 2022 | Garrett Ryan, Ph.D
    This video explores the famous Roman roads, and investigates why - after 2,000 years of wear and tear - they seem to be in better shape than most expressways in modern America. Chapters:0:00 Introduction0:59 The Roman road network2:23 Building the roads3:25 Traffic on the roads4:48 StartMail (paid ad)5:53 Cuts, bridges, and tunnels7:58 Longevity of the roads9:16 Comparing ancient and modern roads10:39 ConclusionWere Roman Roads more Durable than Modern Highways? | February 4, 2022 | toldinstone
  • Germany: Wind turbine collapses hours before official launch

    10/01/2021 11:46:29 AM PDT · by DUMBGRUNT · 131 replies
    AP ^ | 30 sept 2021 | AP
    BERLIN (AP) — Officials in Germany are investigating why a huge wind turbine collapsed just hours before it was due to be officially inaugurated. The turbine, whose rotor blades reach a height of 239 meters (784 feet), toppled over late Wednesday in a forest near the western town of Haltern. German news agency dpa reported Thursday that police were not currently suspecting sabotage.
  • 8 of the Most In-Demand Engineering Jobs for 2021

    06/17/2021 7:26:41 AM PDT · by fireman15 · 80 replies
    newengineer.com ^ | June 1, 2021 | Dean McClements
    Sometimes, when deciding on a career path, it can be difficult to know how your chosen industry will fare in the future. Are wages likely to increase? Will jobs be hard to come by? Much can feel unknown. To put your mind at ease, NewEngineer is here to help, crystal ball in hand. In the field of engineering it's clear that the current trend is towards information technology and automation, and this is set to remain the case for the foreseeable future – entering these sectors is as safe a bet as you could hope for. While traditional fields such...
  • This 'Vegan Spider Silk' Could Replace Most Single-Use Plastics

    06/15/2021 7:57:37 PM PDT · by blueplum · 7 replies
    Popular Mechanics ^ | 14 Jun 2021 | Daisy Hernandez
    Researchers from the University of Cambridge may have a viable solution to the single-use plastic dilemma: spider silk. Or, more accurately, a plant-based synthetic polymer that mimics the composition of spider silk, but doesn't actually come from the eight-legged arthropods. The researchers modeled their polymer after spider silk due to its durability and strength—if you could scale up a spiderweb to human size, it would be capable of trapping an airplane. In fact, spider silk is five times stronger than steel, and half as strong as Kevlar; it's considered one of the strongest naturally occurring materials on Earth. Incredibly, the...
  • End is near: Southern Beltway near Pittsburgh International Airport set for mid-October opening

    04/18/2021 8:49:53 AM PDT · by Tolerance Sucks Rocks · 5 replies
    The Pittsburgh Post-Gazette ^ | April 18, 2021 | Ed Blazina
    Steve Hrvoich stood in the year-old valley beneath girders for the new northbound bridge on Interstate 79 on Thursday as gigantic dump trucks known as triple 7s whizzed by, hauling up to 100 tons of dirt each from the east side of the highway to the west. Crews for Walsh Construction II were a few days away from completing what Mr. Hrvoich, the construction engineering manager for the Pennsylvania Turnpike, called “the big eastern spread.” The crews moved 2 million cubic yards of earth from the eastern side of the valley, clearing space to install thousands of feet of drain...
  • Allan McDonald, Who Refused to Approve Shuttle Challenger Launch, Dead at 83

    03/10/2021 10:11:57 AM PST · by CondoleezzaProtege · 53 replies
    National Public Radio ^ | Mar 2021 | Howard Berkes
    On Jan. 27, 1986, Allan McDonald stood on the cusp of history. McDonald directed the booster rocket project at NASA contractor Morton Thiokol. He was responsible for the two massive rockets, filled with explosive fuel, that lifted space shuttles skyward. He was at the Kennedy Space Center in Florida for the launch of the Challenger "to approve or disapprove a launch if something came up," he told me in 2016, 30 years after Challenger exploded. His job was to sign and submit an official form. Sign the form, he believed, and he'd risk the lives of the seven astronauts set...
  • Don’t Get Scammed By So-Called STEM Education

    03/05/2021 6:52:34 AM PST · by Kaslin · 60 replies
    The Federalist ^ | March 5, 2021 | Tony Kinnett
    America's STEM classrooms are devolving — wasting valuable class time with toys, barely applicable coding games, and victim-mentality nonsense.If you ask any administrator about the future of education, he’ll likely mention the blending of science, technology, engineering, and mathematics: STEM. Indeed, it’s so attractive to schools, billions of dollars are spent every year by corporations, startups, and the U.S. federal government in an 1850s-style “gold rush” of gadgetry and glittering lights. To stand out from the competition and get into classrooms, curriculum developers, policymakers, and advocacy groups have begun to scam the education market by forsaking common-sense STEM principles in...
  • London Bridge day: the story of Lake Havasu’s grandiose antique

    01/14/2021 3:46:25 PM PST · by Tolerance Sucks Rocks · 43 replies
    St. George News ^ | January 10, 2021 | Reuben Wadsworth
    FEATURE — Anyone wanting a dose of authentic European architecture and ambiance does not have to hop on a plane and “cross the pond” but drive just over four hours south of St. George to what one writer called “The largest antique ever sold.” That large antique is the London Bridge, which is now located in Lake Havasu City in northwestern Arizona. It’s not the original London Bridge, nor is it one that inspired the nursery rhyme or song. Even so, it is an impressive sight in the United States. A series of bridges have spanned the River Thames in...
  • Report: How to Fix Surface Transportation Funding

    01/04/2021 1:23:18 PM PST · by Tolerance Sucks Rocks · 17 replies
    For Construction Pros ^ | December 9, 2020 | Jessica Lombardo
    The surface transportation construction industry has long had to rely on Washington for its prosperity. We spend most years holding our breath and hoping we will receive more Federal funding to fix our crumbling roads, bridges and highway systems. Currently in the United States, 7 percent of bridges are structurally deficient, and 19 percent of major highway pavements have deteriorated. Yet, our existing financing structure has few tools to address the looming reconstruction challenges facing existing infrastructure. In 2020, Congress passed a one-year extension of the Fixing America's Surface Transportation (FAST) Act. While the one-year extension of the FAST Act...
  • Epic, hugely successful first high-altitude test of Starship.

    12/09/2020 3:19:25 PM PST · by Moonman62 · 51 replies
    Twitter ^ | 12/09/20 | Eric Berger
    Epic, hugely successful first high-altitude test of Starship. The belly flop maneuver test of Starship's aerodynamics was especially impressive. So very much to build on here for the Starship program.
  • The Smellicopter is an obstacle-avoiding drone that uses a live moth antenna to seek out smells

    12/08/2020 3:17:59 PM PST · by BenLurkin · 10 replies
    university of Washington ^ | 12/07/2020 | Sarah McQuate
    One huge advantage of drones is that these little robots can go places where people can’t, including areas that might be too dangerous, such as unstable structures after a natural disaster or a region with unexploded devices. Researchers are interested in developing devices that can navigate these situations by sniffing out chemicals in the air to locate disaster survivors, gas leaks, explosives and more. But most sensors created by people are not sensitive or fast enough to be able to find and process specific smells while flying through the patchy odor plumes these sources create. Now a team led by...
  • Engine Trouble: The 1 Thing Holding Back China’s New Warplanes

    11/30/2020 12:01:07 PM PST · by RomanSoldier19 · 60 replies
    https://nationalinterest.org/ ^ | November 21, 2020 | by David Axe
    Beijing has succeeded in copying and stealing their way forward, but they have hit a snag. The Chinese military is building up a meaningful force of J-20 stealth fighters, Y-20 strategic airlifters and other high-tech military aircraft while also developing a new stealth fighter, fighter-bomber and heavy bomber. But for all of these advancements, Chinese industry still is struggling to manufacture arguably the most important subsystems for these new planes. Their engines. Aviation website Alert 5 spotted a stock-exchange filing by the Hebei subsidiary of China’s Central Iron & Steel Research Institute. The filing including production projections for military engines...
  • Middle Schooler Becomes Youngest Person to Achieve Nuclear Fusion

    10/09/2020 11:54:06 AM PDT · by RomanSoldier19 · 50 replies
    https://interestingengineering.com ^ | October 08, 2020 | By Derya Ozdemir
    This boy fused two deuterium atoms together in a reactor he built in his family home! This is what happens when kids are given the means and opportunities to follow their dreams: 12-year-old Jackson Oswalt achieved nuclear fusion using the reactor he had built in his house in Memphis, Tennessee, officially making him the world's youngest person to achieve nuclear fusion, per Guinness World Records! Now, at 15 years old, he has become one of this year's Guinness World Records 2021 edition stars.
  • This giant Gundam robot makes its first moves in Japan (Gobot)

    09/25/2020 12:36:05 PM PDT · by Roman_War_Criminal · 35 replies
    SS ^ | 9/25/20 | ss
    It stands just over 18 metres tall and weighs 25 tonnes. And, after years of painstaking work, a life-size Japanese Gundam robot has just proved to its legions of fans that it really can move. Modelled on one of the robots from the hugely popular 1970s anime series Mobile Suit Gundam, the huge machine was put through its paces this week at its new home in the the port city of Yokohama. The humanoid was due to become the centrepiece of Gundam Factory Yokohama, south of Tokyo, on 1 October, but the virus pandemic means it will not be officially...
  • Have Any Other Freepers Gone Through This Latest Round Of Coronavirus Simon Says Silliness?

    07/08/2020 6:48:34 PM PDT · by Viking2002 · 45 replies
    *sigh* OK. On Friday, 6/26, I underwent an upper GI endoscopic exam for my Hemo/oncology specialist, to check for varices, bleeders, portal hypertension, etc. After I came out of the fog, they unhooked all with wires, tubes, etc., and allowed me to dress. The endo doc came by and said, with the exception of some 'changes' due to GERD (which has been treated for years), nothing was amiss. In the midst of shaking the fuzz out of my ears, they mentioned that I'd have a follow-up for it. Here's where it gets good: They called me this afternoon to confirm...
  • DEFCON27 Wireless Village - Kent Britain - Antennas for Surveillance

    05/24/2020 8:14:25 AM PDT · by tbw2 · 6 replies
    Defcon 2019 ^ | Nov 19, 2019 | Kent Britain
    Care and feeding of Software Defined Radios We will cover the various kinds of antennas available to optimized your SDR radio for different types of spectrum monitoring. We will also explain why RF filters are necessary on most SDR's and when Low Noise Amplifiers help, and when Low Noise Amplifiers hurt reception.
  • Killing Off a Pandemic is Engineering, Not 'Science'

    05/21/2020 6:26:40 AM PDT · by Kaslin · 10 replies
    American Thinker. com ^ | May 21, 2020 | Chet Richards
    More than half a century ago a fellow grad student invited me into his laboratory to show me his doctoral research. He introduced me to the science of animal reflexes. A novel stimulus induces in an animal, however briefly, a freeze reaction. This is called an “orienting reflex.” What happens next depends on the animal’s response to the potential threat. If the novel stimulus does not seem to be a threat the animal gradually relaxes. Repeats of this type of stimulus gradually habituate its orienting reflex so that the animal, in effect, learns to ignore this particular stimulus. On the...