The History of Elevators

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The History of Elevators

November 12, 2024
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https://upload.wikimedia.org/wikipedia/commons/8/8c/Colin_Campbell_Cooper%2C_Hudson_River_Waterfront%2C_N.Y.C.jpg

The first recorded public use of an elevator was in 1743, in a private residence in France. It was created by a French scientist and inventor named Louis-François Dauprat. However, this early elevator was not used for public transportation or in a commercial building.

The first practical passenger elevator was invented by Elisha Graves Otis, an American industrialist and inventor, in 1852.  The Otis elevator used a safety device known as a “safety brake” or “safety hoist,” which prevented the elevator from falling in case the hoisting cable broke at a five-story building in New York City in 1857, known as Haughwout Building.

This invention revolutionized vertical transportation, allowing for the construction of taller buildings and changing the way people live and work in urban areas.

Elevators & Lifts

“Elevator Man”

The earliest installation of a passenger elevator in a university building in the United States was at the Massachusetts Institute of Technology.  In 1861, Otis Brothers & Co., the company founded by Elisha Graves Otis, installed the first passenger elevator on a university campus in the Rogers Building at MIT. The Rogers Building was a three-story structure that housed laboratories, classrooms, and offices for faculty and students. The installation of the passenger elevator provided vertical transportation within the building, making it more convenient for people to move between floors.

This early installation marked an important milestone in the history of vertical transportation on college and university campuses, and it paved the way for the adoption of elevators in other educational institutions as they expanded in size and height over time.

 

International Building Code: Chapter 27 Electrical

November 12, 2024
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§ 2701.1 Scope.  The provisions of this chapter and NFPA 70 shall govern the design, construction, erection and installation of electrical components, appliances, equipment and systems used in buildings and structures covered by this code.  The International Fire Code, the International Property Maintenance Code and NFPA 70 shall shover the use and maintenance of electrical components, appliances, equipment and systems.  The International Existing Building Code and NFPA 70 shall govern the alteration, repair, relocation, replacement and addition of electrical components, appliances, or equipment and systems.

CHAPTER 27 ELECTRICAL

Workspace / ICC

Red, White and Blue Smoothie

November 11, 2024
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University System of Maryland | $12.225B

Strawberries

Blueberries

University of Maryland Extension

Standards Maryland

The choice of red, white, and blue in national flags often carries historical, cultural, and political significance. Here are some reasons why various nations have chosen these colors:

  1. Historical Connections:
    • United States: The colors were chosen for their flag in 1777 and have been interpreted to symbolize valor (red), purity (white), and justice (blue). The colors were influenced by the British Union Jack.
    • France: The Tricolour flag adopted during the French Revolution represents liberty (blue), equality (white), and fraternity (red).
    • United Kingdom: The Union Jack combines elements from the flags of England (red and white), Scotland (blue and white), and Ireland (red and white).
  2. Cultural and Political Significance:
    • Russia: The flag’s colors were adopted from the Dutch flag, symbolizing pan-Slavism (red for bravery, blue for faithfulness, and white for honesty).
    • Netherlands: The Dutch flag’s colors (originally derived from the Prince’s Flag) have historical roots, symbolizing the struggle for independence and liberty.
    • Czech Republic and Slovakia: Both countries use red, white, and blue to represent their Slavic heritage.
  3. Influence and Inspiration:
    • Chile, Costa Rica, and Panama: These countries were influenced by the colors and symbolism of other flags (e.g., the French and American flags) during their independence movements.
    • Australia and New Zealand: Both countries incorporate the Union Jack in their flags, reflecting their colonial history with the United Kingdom.
  4. Symbolism:
    • Croatia, Serbia, and Slovenia: The colors are traditional pan-Slavic colors, representing freedom and national unity.
    • Iceland and Norway: The colors reflect their historical and cultural ties to other Scandinavian countries.

The exact reasons can vary, but often the colors reflect a mix of historical alliances, cultural heritage, and political ideals.

 

MIL-STD

November 11, 2024
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Today at the usual hour we take will take a broad view of the technical standards catalog of all military branches as they apply to the educational settings of each of the US military branches. Use the login credentials at the upper right of our home page.

“Overgrown military establishments are under any form of government inauspicious to liberty, and are to be regarded as particularly hostile to republican liberty.” Farewell Address, September 19, 1796.

United States defense standards are used to help achieve standardization objectives by the U.S. Department of Defense. Standardization is beneficial in achieving interoperability, ensuring products meet certain requirements, commonality, reliability, total cost of ownership, compatibility with logistics systems, and similar defense-related objectives. Defense standards are also used by other non-defense government organizations, technical organizations, and industry.

Military technical standards and public sector technical standards differ primarily in their purposes, scope, and requirements. Military standards — such as MIL-STD and MIL-SPEC — are designed to ensure high reliability, durability, and performance under extreme conditions, as they often pertain to defense systems, weaponry, and other critical applications. These standards prioritize security, robustness, and interoperability in challenging environments, and typically involve stringent testing and certification processes.

In contrast, public sector technical standards, like those developed by the International Organization for Standardization  or the Institute of Electrical and Electronics Engineers, are geared towards broader civilian applications. They focus on safety, quality, efficiency, and compatibility for a wide range of industries, including manufacturing, technology, and services. These standards aim to facilitate trade, ensure consumer safety, and promote innovation and best practices. While public sector standards also emphasize reliability and performance, they are generally less rigid than military standards, reflecting a broader range of use cases and operational conditions.

United States Defense Logistics Agency

 

Space Force Academy

November 11, 2024
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United States Space Force

Allied Trade Specialist

November 11, 2024
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The MIL-SPEC catalog and its evolution have had a significant impact on various industries beyond the military sector. Many civilian industries have adopted military standards as a benchmark for quality, reliability, and compatibility in their products and processes.

World War II Era:

The MIL-SPEC system traces its roots back to the World War II era when the U.S. military faced challenges in coordinating manufacturing efforts across multiple suppliers.  To address these challenges, the military began developing specifications and standards that detailed the requirements for various equipment and materials, including dimensions, materials, performance criteria, and testing procedures.

Post-World War II:

After World War II, the MIL-SPEC catalog expanded significantly to cover a wide range of military equipment, ranging from electronics and aircraft components to clothing and food supplies.  The standards were continuously updated and revised based on technological advancements, lessons learned, and evolving military needs.

Evolution into MIL-STD:

In the 1950s and 1960s, the MIL-SPEC system evolved into the Military Standard (MIL-STD) system to provide even more comprehensive and detailed specifications.  MIL-STD documents incorporated a broader scope of requirements, including design criteria, quality control processes, and test methodologies.  The MIL-STD system aimed to ensure consistent design and manufacturing practices across contractors and suppliers.

MIL-STD Transition to Commercial Standards:

Over time, the reliance on MIL-STDs started to decline, and there was a shift towards adopting commercial standards whenever possible.  This transition allowed the military to benefit from the advancements and cost efficiencies of commercial technologies.  However, certain critical military-specific standards, such as those related to security and specialized equipment, continued to be maintained within the MIL-STD framework.

DoD’s Transition to Performance-Based Specifications:

In recent years, the DoD has been moving away from prescriptive specifications (MIL-STDs) towards performance-based specifications. Performance-based specifications focus on defining the desired outcomes and performance requirements while allowing contractors greater flexibility in meeting those requirements. This approach encourages innovation, cost-effectiveness, and broader industry participation in military contracts.

Welding Standards

Servicemen’s Readjustment Act

November 11, 2024
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Smart Cities: Wicked Problems

November 11, 2024
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“Oxford from the River with Christ Church in the Foreground” | William Turner (1820)

 

Smart cities: moving beyond urban cybernetics to tackle wicked problems

Cambridge Journal of Regions, Economy and Society, Volume 8, Issue 1, March 2015 | “The Smart City”

Robert Goodspeed | University of Michigan 

 

Abstract. This article makes three related arguments. First, that although many definitions of the smart city have been proposed, corporate promoters say a smart city uses information technology to pursue efficient systems through real-time monitoring and control. Second, this definition is not new and equivalent to the idea of urban cybernetics debated in the 1970s. Third, drawing on a discussion of Rio de Janeiro’s Operations Center, I argue that viewing urban problems as wicked problems allows for more fundamental solutions than urban cybernetics, but requires local innovation and stakeholder participation. Therefore the last section describes institutions for municipal innovation and IT-enabled collaborative planning.

Flags

November 11, 2024
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A flag stands for a set of principles; the reach for the ideals of a civilization–
not for the lapses of adherence to them.

“After School” 1959 Norman Rockwell

Flag Day in the United States, observed on June 14th, commemorates the adoption of the American flag by the Second Continental Congress in 1777. It’s a day to honor the symbol of the nation’s unity, freedom, and democracy. The flag represents the ideals and principles upon which the country was founded, including liberty, justice, and equality.

On Flag Day, Americans typically display the flag at their homes and businesses, participate in patriotic ceremonies, and reflect on the significance of the flag in American history and culture. It’s also a time to remember the sacrifices made by those who have served and continue to serve in defense of the nation. Flag Day serves as a reminder of the values that bind Americans together as one nation, under the banner of the stars and stripes.

United States Independence Day

There are no rigorous standard heights for flagpoles displaying the American flag in educational settlements but there are general guidelines and recommendations.

Commercial Use: In commercial settings, flagpoles can vary widely depending on the size of the building and the surrounding landscape. They can range from 20 feet for smaller businesses to over 100 feet for large corporate buildings.

Government Buildings: Flagpoles at government buildings or public spaces often range from 30 to 60 feet or more, depending on the size and prominence of the building.

Proportions: A general guideline for the American flag is that the length of the flag should be about one-quarter to one-third the height of the flagpole.

Regulations: Some local ordinances or homeowner associations may have specific guidelines regarding flagpole height, so it’s a good idea to check local regulations before installing one.

Ultimately, the height of a flagpole for the American flag depends on the context and purpose of display, as well as practical considerations such as the size of the flag itself and local regulations.

Flagpoles

University of Michigan

Hillsdale College Michigan

Western University Ontario

Universitetet i Oslo

Northeastern University Massachusetts

University at Buffalo New York

Università Ca’ Foscari Venezia

Pepperdine University / California

Colby College Maine

Finley Public School New South Wales Australia

St. Olaf College Minnesota

College of the Ozarks Missouri

University of Alaska Fairbanks

 

Neuqua Valley High School Illinois

Hillsdale College Michigan

Abilene Christian University Texas

University of Southern Mississippi | Image: Courtland Wells

Québec

Queensborough Community College

Bucknell University Pennsylvania

Flagpoles

 

NB: “The flag stands for a set of principles, not the lack of adherence to them.” ― Craig D. Lounsbrough.  We are not sure about this source; nor the author.  We have adapted the sentiment for our home page excerpt.

Flagpoles

Solar Photovoltaic Energy Systems

November 10, 2024
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Technical Committee 82 of the International Electrotechnical Commission is charged with preparing international standards for the full length of the solar energy power chain  The span of the power chain includes the light input, the cell itself, and the fittings and accessories to the end use (utilization) equipment.

Strategic Business Plan of IEC Technical Committee 82

The United States is the Global Secretariat for TC 82 through the US National Committee of the International Electrotechnical Commission (USNA/IEC) administered by the American National Standards Institute(ANSI).  Standards Michigan is a long-standing member of ANSI since our “standards journey” began at the University of Michigan in 1993.

The USNA/IEC and participates in its standards development processes; typically collaborating with global research and application engineers in the IEEE Industrial Applications Society and the IEEE Power and Energy Society.   To advance its agenda for lower #TotalCostofOwnership for US real asset executives and facility managers Standards Michigan also collaborates closely with subject matter experts who contribute to, and draw from, the knowledge base in the IEEE Education and Healthcare Facilities Committee (E&H).

The IEC permits public commenting on its draft standards; though you will need to establish login credentials:

IEC Public Commenting

Your comments will be reviewed by the IEC National Committee of the country you live in, which can decide to propose them as national input for the final draft of the IEC International Standard.  This approach makes it easier for individual nations to participate in IEC standards development processes because the resources that national standards bodies need to administer participation resides in Geneva and is managed there.  

“The Eclipse of the Sun in Venice, July 6, 1842” | Ippolito Caffi

We collaborate with the IEEE Education & Healthcare Facilities Committee which has its own platform to tracking commenting opportunities:

IEEE E&H/USNC/IEC Workspace

As of this posting, no interoperability redlines have been released for public consultation.   In large measure, IEC titles contribute to a level playing field among multi-national electrical equipment manufacturers so we should not be surprised that there are no redlines to review.   When they are released we place them on the agenda of the IEEE E&H Committee which meets 4 times monthly in European and American time zones.

Log in to the E&H Committee meeting

Issue: [18-240]

Category: Electrical Power, Energy Conservation

Contact: Mike Anthony, Jim Harvey, Peter Sutherland

LEARN MORE:

[1] US Commenters must route their comments through the USNA/IEC.

[2] Many product and installation standards are developed by the Association of Electrical Equipment and Medical Imaging Manufacturers (NEMA): CLICK HERE

[3]  NEMA comparison of NEC and IEC electrical safety standards

Dutch Institute for Fundamental Energy Research

 

 

 

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