CFL

• These certifications mark two major milestones: CBDHCC is NSF’s first client in the world to comply with NSF Guideline 527, which demonstrates the product formula meets strict limits and is free of unsafe levels of impurities and adulterants; it is also the first personal care product to earn NSF Certified for Sport® certification.
• "The spirit of clean athletic competition is something we all connect with,” said David Trosin, Senior Director, Global Certification at NSF.
• NSF Certified for Sport® certifies dietary supplements, functional foods, cosmetics and personal care products to be free from substances banned by major sporting organizations.
• Products Certified for Sport® must also be certified to either NSF/ANSI 173, NSF 229 or NSF 527 to ensure their contents match their claims.

• This year’s event on Sunday – with the added attraction of a romance in the spotlight – promises to attract as many fans.
• In Canada, the most recent Grey Cup final, last November, reached a record audience of 3.7 million viewers who tuned in to watch the Montréal Alouettes’ victory.
• A number of factors affect the ball’s aerodynamics, including the way it is made and its inflation pressure.
• As a professor in the Department of Mechanical Engineering at Québec’s École de technologie supérieure, I am interested in experimental fluid dynamics.

Ball size affects flight stability

• They must be between 11" and 11.25" long.
• The higher the speed of rotation, the more stable the ball will be during its flight.
• Different dimensions can therefore have specific effects on the stability of the ball’s flight.

A larger circumference suggests that more of the ball’s mass is located away from its centre line. This means that it will have a higher moment of inertia (resistance to rotation) and, therefore, that the same force applied to make it rotate will result in a lower speed of rotation.

Two stripes and laces make a difference

• While there are two white stripes on the Canadian ball, as well as laces, American rules don’t mention these.
• The differences between the Canadian and American balls can have an effect on their drag.
• In this case, it is mainly the resistance caused by the air (a fluid), which is called form or pressure drag.

NFL or CFL, which ball is better?

• An aerodynamic force balance could be used to measure the differences in drag between the two balls subjected to the same conditions.
• The movement of these particles could then be captured using a camera to quantify the airspeed at all points around the ball.

Different rotation speeds and flight speeds could be examined, as there is always the possibility of developing flow instabilities, which would lead to a change in its behaviour around the ball. This would help determine whether the NFL or CFL ball is better.

Ball texture influences drag

• The rougher the texture of the ball, the greater the friction drag for the same speed.
• Similarly, a faster ball speed will have a higher friction drag.

And then there’s the weather!

• Cold or hot temperatures can affect the size of the ball by reducing or increasing the air pressure inside it.
• Similarly, temperature can have some effect on the material properties of the ball, with colder temperatures making it stiffer and warmer temperatures making it softer.

Giuseppe Di Labbio ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d'une organisation qui pourrait tirer profit de cet article, et n'a déclaré aucune autre affiliation que son organisme de recherche.

• VANCOUVER, British Columbia, Nov. 15, 2023 (GLOBE NEWSWIRE) -- Tradable Bits , a leading provider of fan engagement, data, and marketing solutions for the global sports, music, and entertainment industries, has been recognized by the Sports Business Journal as a Power Player in Fan Experience Technology , the company announced today.
• Tradable Bits launched several innovations in the past year that led to the honour by Sports Business Journal, including:
  ARCADE: Tradable Bits’ customizable arcade-style games offer interactive ways for fans to interact with teams, even when they’re not actively watching a game.
• From interactive wayfinding Infotowers to seamless integration with teams’ POS systems, Tradable Bits delivers actionable links and opportunities to fans on-site.
• Tradable Bits also works closely with Can Export, a program from the Canadian Trade Commissioner Service to provide funding for exporters, innovators, associations and communities.

• John Pelletier, director of the Center, says that the 2023 report card lists seven states earning an A, just two more states than in 2017, its last report card.
• States with an A grade require students to take a semester long personal finance course, or its equivalent, prior to graduation.
• "High school personal finance education can help alleviate the cycle of poverty that exists in our nation," says Pelletier.
• To produce the Report Card, the Center again conducted detailed reviews of high school graduation requirements, state academic standards for personal finance education, and laws, regulations and guidelines that relate to how each state delivers personal finance education in its public high schools.