Black History

Kevin Woolfolk: The Innovator Behind the Modern Hamster Exercise Wheel

Recognizing the potential value of his invention for other pet owners and researchers, he patented his improved hamster exercise wheel, making him the known inventor of this type of measuring device. His patent (US 5,649,503) describes “a squirrel cage” with “a cyclometer having a sensor mounted on the support and a trigger mounted on the cylinder such that when the cylinder rotates, the trigger passes near the sensor.”

Published

11 months ago

August 25, 2025

Tamara Shloh

Design sketch courtesy of Kevin Woolfolk.

By Tamara Shiloh

In the world of pet care innovation, some of the most impactful inventions come from the simplest observations. Such is the case with Kevin Woolfolk, an inventor whose curiosity about his pet hamster led to a revolutionary improvement in small animal exercise equipment that continues to benefit pets and their owners today.

There isn’t much written about Woolfolk’s life, but his story begins in 1969 when he was exercising on his stationary bike one evening in Normal, Illinois. As he diligently recorded the mileage of his workout, he noticed his hamster, Burt, running energetically on his wheel. This simple observation sparked a question that would lead to a significant innovation: just how far was Burt traveling during his nightly runs?

Unlike many inventors who start with complex technical problems, his inspiration came from genuine curiosity about his pet’s activity levels. He wondered about the distance Burt was covering as he ran on the traditional hamster wheel, which at the time provided exercise but no way to measure the animal’s activity.

Driven by this curiosity, Woolfolk created a prototype that could measure his hamster’s exercise routine. His solution was simple: he constructed a mouse wheel equipped with a small magnetic counter purchased from a local store. This addition transformed the basic exercise wheel into a device capable of tracking the distance traveled by the animal.

After placing the prototype in Burt’s cage, Woolfolk left his hamster to complete his nightly exercise routine. The results were astounding — upon waking up, he discovered that Burt had run an impressive 23,300 feet, equivalent to roughly 4.5 miles. This revelation not only satisfied his curiosity but also demonstrated the significant exercise needs of small pets like hamsters.

Motivated by this eye-opening figure, he decided to put his creative juices to work. About a year after drafting the idea, he filed and was granted a patent for a “squirrel cage having a cyclometer … and method for monitoring the activity of an animal.” The patent detailed the mechanics of effectively tracking the animal’s activity via wheel rotation.

This innovation represented more than just a gadget for curious pet owners. The ability to measure small animal exercise provided valuable data for veterinarians, researchers, and pet enthusiasts who wanted to better understand and monitor their pets’ health and activity levels.

Woolfolk’s invention has had lasting impact on the pet industry. His idea was eventually picked up by pet companies and commercialized, making the measuring hamster wheel available to consumers worldwide. Today, variations of his design can be found in pet stores and are used by hamster owners who want to track their pets’ exercise routines.

Tamara Shloh

Posts by Tamara Shloh

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Oakland Post: Week of July 29 – August 4, 2026

The printed Weekly Edition of the Oakland Post: Week of July 29 – August 4, 2026

Published

2 days ago

August 1, 2026

Oakland Post

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Black History

OP-ED: ‘The Trusted Messenger’ and the Black Vote

BLACKPRESSUSA NEWSWIRE — Now, as we approach one of the most important Midterm elections in the history of this nation, it appears that, once again, the Black Press will be expected to carry the message about voter turnout, while political and campaign dollars go to the White mainstream media.

Published

4 days ago

July 29, 2026

bpusa-syndication

It is a well-established fact that the Black Press is and always has been the “Trusted Messenger” of the Black community. With that being said, it is also very interesting that when many political organizations and donors decided to support Voter Registration and Get Out The Vote, those donors gave their dollars predominantly to Black organizations like the Urban League, the NAACP, the League of Voters, and other nonprofit groups. Those groups will prepare and send out press releases about such voter participation efforts since Black people were responsible primarily for the Voting Rights Act of 1965.

What is most interesting is that those press releases rarely find their way onto CNN or the major news networks. Those press releases and calls to Black voter participation are carried in the Black Press. However, the dollars that support those press releases being written, nor the ads that carry the message of those releases, reach the Black Press. Historically, the dollars behind those messages do not find their way to the very Black Press that carries those messages.

Now, as we approach one of the most important Midterm elections in the history of this nation, it appears that, once again, the Black Press will be expected to carry the message about voter turnout, while political and campaign dollars go to the White mainstream media.

Those who are spending the billions of dollars that will go to Campaign Finance appear to have forgotten that elections are won and lost on a single vote.

Now is the time to remind the candidates, the political Initiatives and Propositions that will appear on the ballots across this nation, that the Black Vote must not be taken for granted. It does not belong to any particular political party or interest group. It can not be judged by whether it exists in a Blue or Red State.

The Democrats, Republicans, Independents, and supporters of Initiatives should not assume that our votes are unimportant.

Elections are won on a single vote.

The United States Supreme Court in Reynolds vs. Sims, 1964. That case established the ‘One Person, One Vote” rule. The rule in that case made it mandatory to base legislative seats on population within districts rather than on geography, and guaranteed Equal Protection coverage under the Fourteenth Amendment to the Constitution.

That principle has not been abolished, and neither should we act as if our one vote does not count. Let us not forget our own values, and we look toward the Midterm elections. The “Trusted Messenger” can make the difference.