Northern Kentucky University officials broke ground on an expansion of the Dorothy Westerman Herrmann Science Center in a ceremony at the Highland Heights campus on Thursday.https://t.co/Qecc3Lfutt#NorseUppic.twitter.com/ggVpoIAxLa
‘O God Beyond All Praising’ was sung at Winston Churchill’s funeral on January 30, 1965, to the tune Thaxted by Gustav Holst. The hymn, with lyrics by Michael Perry, uses the same melody as ‘I Vow to Thee, My Country’, which was also associated with Churchill’s funeral, contributing to its patriotic resonance.
This year’s Annual Fashion Show features 171 looks from 42 designers. Collections and single-submission garments were chosen by a panel of industry critics and jurors. The pieces include evening wear, market-ready, universal design and more. https://t.co/3shpSI9LdV
The School of Fashion had the pleasure of hosting students from Streetsboro Middle School. Students got the chance to gain a better understanding of fashion, design and knitwear by participating in a variety of educational activities.
Citizens of the Earth depend upon United States leadership in this technology for several reasons:
Development: The GPS was originally developed by the US Department of Defense for military purposes, but it was later made available for civilian use. The US has invested heavily in the development and maintenance of the system, which has contributed to its leadership in this area.
Coverage: The GPS provides global coverage, with 24 satellites orbiting the earth and transmitting signals that can be received by GPS receivers anywhere in the world. This level of coverage is unmatched by any other global navigation system.
Accuracy: The US has worked to continually improve the accuracy of the GPS, with current accuracy levels estimated at around 10 meters for civilian users and even higher accuracy for military users.
Innovation: The US has continued to innovate and expand the capabilities of the GPS over time, with newer versions of the system including features such as higher accuracy, improved anti-jamming capabilities, and the ability to operate in more challenging environments such as indoors or in urban canyons.
Collaboration: The US has collaborated with other countries to expand the reach and capabilities of the GPS, such as through the development of compatible navigation systems like the European Union’s Galileo system and Japan’s QZSS system.
United States leadership in the GPS has been driven by a combination of investment, innovation, collaboration, and a commitment to improving the accuracy and capabilities of the system over time.
Hosting open-air celebrations such as graduations and cultural requires sensitivity to audio standards that ensure high-quality sound and audience safety. Today at the usual hour we examine the standards covering sound system design, noise control, loudness levels, equipment specifications, weather and local environmental considerations.
Surprisingly, there are many even without approaching the not insignificant cabling system standards. We pick three representatives titles which cross reference one another:
World Health Organization recommendations for limiting exposure to leisure noise (e.g., concerts) to a level exceeding 80 dBA for 24 hours or 140 dB peak sound pressure to prevent hearing loss. Recommendations for speech heavy events will defer from musical events.
Height and Angle: Line array speakers are often elevated (e.g., on trusses or poles) and angled to cover the audience while reducing sound spill to non-audience areas.
Distance: Main speakers should be placed to avoid excessive sound pressure near the front (e.g., 95–100 dBA max for audience safety) and ensure clarity at the back.
Acoustical Society of America ASA-2010 Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools. While primarily for schools, this standard’s principles can apply to open-air educational or community events, emphasizing background noise control and speech intelligibility. For open-air audiences at events like outdoor lectures or festivals, speaker placement should minimize interference from environmental noise (e.g., traffic, wind). The standard suggests maintaining a signal-to-noise ratio where speech is at least 15 dB above background noise for clarity.
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“Center Grove Schools enters the 2022/2023 school year with a new high-tech safety partner — Centegix CrisisAlert — purchased in part with school safety grant money that pairs with their Emergency Operations Center that opened in January 2022. The CrisisAlert program puts security at the fingertips of all teachers and staff.
Both systems address what the district learned it had to work on from a school safety assessment back in 2018 – live monitoring and faster response times in an emergency. Seven-hundred cameras will scan every school in real-time from the district’s Emergency Operations Center. — More”
Qualified Zone Academy Bonds (QZABs) are a U.S. government debt instrument created by Section 226 of the Taxpayer Relief Act of 1997. It was later revised and regulations may be found in Section 54(E) of the U.S. Code. QZABs allow certain qualified schools to borrow at nominal interest rates (as low as zero percent) for costs incurred in connection with the establishment of special programs in partnership with the private sector…
…Funds can be used for renovation and rehabilitation projects (including energy projects), as well as equipment purchases (including computers). QZABs cannot be used for new building construction. The school district must obtain matching funds from a private-sector/non-profit partner equal to at least 10% of the cost of the proposed project. Information on the two QZAB federal mandates, 10% match and academy, can be obtained by visiting the American Association of School Administrators (AASA) school financing toolkit (see resources below).
…The normal annual allocation each year has been $400,000,000. However, during 2008, 2009, and 2010, the American Recovery & Reinvestment Act (ARRA) increased these amounts to 1.4 billion. The 2011 allocation has returned to the $400,000,000 level. The allocation is divided up by all fifty states and US possessions. QZABs are a temporary program, subject to reauthorization. The last authorization was for the calendar years 2012 and 2013. Authorizations must be used within two years following the year for which they were given, meaning that authorizations given in 2012 must be used by December 31, 2014. As of July 21, 2014, the reauthorization of the QZAB program for years 2014 and 2015 has not been passed by the U.S. Congress. [Emphasis added*]…
…Schools usually fund large projects, like building renovation or construction, through debt mechanisms such as tax-exempt bonds or loans. School districts must then pay a substantial amount of interest on this debt. For schools serving low income students, QZABs reduce the burden of interest payments by giving financial institutions holding the bonds (or other debt mechanism) a tax credit in lieu of interest. The school district must still pay back the amount of money it initially borrowed, but does not have to pay any interest — typically about half the cost of renovating a school. The credit rate for QZABs sold on a given day is set by the Treasury Department…
With the COVID-19 pandemic disrupting education facility construction projects — and the prospect of at least 10 percent of the built environment rendered redundant for all time — it is enlightening to review the several sources of financing for these construction projects.
We review education industry construction project status and financing at least twice a month during our US Census Bureau Monthly Construction and Finance teleconferences. See our CALENDAR for the next online meeting; open to everyone. Use the login credential at the upper right of our home page.
The thunderbolt steers all things. —Heraclitus, c. 500 BC
After the rain. Personal photograph taken by Mike Anthony biking with his niece in Wirdum, The Netherlands
Today at 15:00 UTC we examine the technical literature about rainwater management in schools, colleges and universities — underfoot and on the roof. Lightning protection standards will also be reviewed; given the exposure of outdoor athletic activity and exterior luminaires.
We draw from previous standardization work in titles involving water, roofing systems and flood management — i.e. a cross-cutting view of the relevant standard developer catalogs. Among them:
American Society of Civil Engineers
American Society of Plumbing Engineers
ASHRAE International
ASTM International
Construction Specifications Institute (Division 7 Thermal and Moisture Protection)
The “lightning effect” seen in carnival tricks typically relies on a scientific principle known as the Lichtenberg figure or Lichtenberg figure. This phenomenon occurs when a high-voltage electrical discharge passes through an insulating material, such as wood or acrylic, leaving behind branching patterns resembling lightning bolts.
The process involves the creation of a temporary electric field within the material, which polarizes its molecules. As the discharge propagates through the material, it causes localized breakdowns, creating branching paths along the way. These branching patterns are the characteristic Lichtenberg figures.
In the carnival trick, a high-voltage generator is used to create an electrical discharge on a piece of insulating material, such as acrylic. When a person touches the material or a conductive object placed on it, the discharge follows the path of least resistance, leaving behind the branching patterns. This effect is often used for entertainment purposes due to its visually striking appearance, resembling miniature lightning bolts frozen in the material. However, it’s crucial to handle such demonstrations with caution due to the potential hazards associated with high-voltage electricity.
Duke University West Campus Water Reclamation Pond | Click on image
One of several titles asserting best practice for rainwater catchment systems — an emergent design feature many college and university facility departments are signaling to demonstrate their conformity to the campus sustainability zietgeist — is ASPE 63 Rainwater Catchment Systems; developed and published by the American Society of Plumbing Engineers. From the project prospectus:
Scope: This standard covers requirements for the design and installation of rainwater catchment systems that utilize the principle of collecting and using precipitation from a rooftop and other hard, impervious building surfaces. This standard does not apply to the collection of rainwater from vehicular parking or other similar surfaces.
Project Need: The purpose of this standard is to assist engineers, designers, plumbers, builders/developers, local government, and end-users in safely implementing a rainwater catchment system.
Stakeholders: Plumbing engineers, designers, plumbers, builders/developers, local government, end users.
You may obtain a copy of the 2020 edition by contacting Gretchen Pienta, (847) 296-0002, gpienta@aspe.org, 6400 Shafer Court, Suite 350, Rosemont, IL 60018. We encourage front-line/workpoint experts and facility managers to participate in the ASPE standards development process. Start with the link below:
We have all water system codes and standards on the agenda of our next monthly Mechanical, Plumbing and Rain colloquia See our CALENDAR for the next online meeting; open to everyone.
“Benjamin Franklin Drawing Electricity from the Sky” 1816 Benjamin West
Benjamin Franklin conducted his famous experiment with lightning on June 10, 1752.
He used a kite and a key to demonstrate that lightning was a form of electricity.
This experiment marked an important milestone in understanding the nature of electricity
and laid the foundation for the development of lightning rods and other lightning protection systems.
Seasonal extreme weather patterns in the United States, resulting in damages to education facilities and delays in outdoor athletic events — track meets; lacrosse games, swimming pool closures and the like — inspire a revisit of the relevant standards for the systems that contribute to safety from injury and physical damage to buildings: NFPA 780 Standard for the Installation of Lightning Protection Systems
This document shall cover traditional lightning protection system installation requirements for the following: (1) Ordinary structures (2) Miscellaneous structures and special occupancies (3) Heavy-duty stacks (4) Structures containing flammable vapors, flammable gases, or liquids with flammable vapors (5) Structures housing explosive materials (6) Wind turbines (7) Watercraft (8) Airfield lighting circuits (9) Solar arrays
This document shall address lightning protection of the structure but not the equipment or installation requirements for electric generating, transmission, and distribution systems except as given in Chapter 9 and Chapter 12.
(Electric generating facilities whose primary purpose is to generate electric power are excluded from this standard with regard to generation, transmission, and distribution of power. Most electrical utilities have standards covering the protection of their facilities and equipment. Installations not directly related to those areas and structures housing such installations can be protected against lightning by the provisions of this standard.)
This document shall not cover lightning protection system installation requirements for early streamer emission systems or charge dissipation systems.
“Down conductors” must be at least #2 AWG copper (0 AWG aluminum) for Class I materials in structures less than 75-ft in height
“Down conductors: must be at least 00 AWG copper (0000 AWG aluminum) for Class II Materials in structures greater than 75-ft in height.
Related grounding and bonding requirements appears in Chapters 2 and Chapter 3 of NFPA 70 National Electrical Code. This standard does not establish evacuation criteria.
University of Michigan | Washtenaw County (Photo by Kai Petainen)
The current edition is dated 2023 and, from the transcripts, you can observe concern about solar power and early emission streamer technologies tracking through the committee decision making. Education communities have significant activity in wide-open spaces; hence our attention to technical specifics.
Public input on the 2026 revision is receivable until 1 June 2023.
We always encourage our colleagues to key in their own ideas into the NFPA public input facility (CLICK HERE). We maintain NFPA 780 on our Power colloquia which collaborates with IEEE four times monthly in European and American time zones. See our CALENDAR for the next online meeting; open to everyone.
Lightning flash density – 12 hourly averages over the year (NASA OTD/LIS) This shows that lightning is much more frequent in summer than in winter, and from noon to midnight compared to midnight to noon.
Issue: [14-105]
Category: Electrical, Telecommunication, Public Safety, Risk Management
Colleagues: Mike Anthony, Jim Harvey, Kane Howard
Didn't really plan for all possibilities, did they. 🤓
Churches and chapels are more susceptible to lightning damage due to their height and design. Consider:
Height: Taller structures are more likely to be struck by lightning because they are closer to the cloud base where lightning originates.
Location: If a church or chapel is situated in an area with frequent thunderstorms, it will have a higher likelihood of being struck by lightning.
Construction Materials: The materials used in the construction of the building can affect its vulnerability. Metal structures, for instance, can conduct lightning strikes more readily than non-metallic materials.
Proximity to Other Structures: If the church or chapel is located near other taller structures like trees, utility poles, or buildings, it could increase the chances of lightning seeking a path through these objects before reaching the building.
Lightning Protection Systems: Installing lightning rods and other lightning protection systems can help to divert lightning strikes away from the structure, reducing the risk of damage.
Maintenance: Regular maintenance of lightning protection systems is essential to ensure their effectiveness. Neglecting maintenance could result in increased susceptibility to lightning damage.
Historical Significance: Older buildings might lack modern lightning protection systems, making them more vulnerable to lightning strikes.
The risk can be mitigated by proper design, installation of lightning protection systems, and regular maintenance.
New update alert! The 2022 update to the Trademark Assignment Dataset is now available online. Find 1.29 million trademark assignments, involving 2.28 million unique trademark properties issued by the USPTO between March 1952 and January 2023: https://t.co/njrDAbSpwBpic.twitter.com/GkAXrHoQ9T
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