Gravity Racing Meta Feed

Record Delta
Corruption Alert — Part 3
Record Delta
Perhaps the student you think of struggles with poverty, race, sexual orientation, disability, gender issues, mental illness, abuse or addiction. Not always, but often, the only support comes from the public ... Rebecca Tucker, a middle school teacher ...

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£49.00 (0 Bids)End Date: 09-Jun 19:27Buy It Now for only: US £157.00Bid now | Buy it now | Add to watch list

Times Herald-Record
Save the weekend
Times Herald-Record
Village of Liberty Mayor, Ron Stabak, left, and Town of Liberty Supervisor, Charlie Barbuti raced against each other to kick off the 4th annual Sullivan County Soapbox Derby along Main Street in Liberty N.Y. May 31, 2015. ... Sullivan County holds its ...

Westman Journal
Kiwanis Kar Derby to hit street early June
Westman Journal
Brandon is seeing the sport of soapbox racing hit its second generation of athletes, says Roger Bright, chair of the Kiwanis Club of Brandon Kar Derby. One of the Kiwanis Club's largest ... purchase of a soapbox racer kit. The race is open to youth ...

£350.00End Date: 25-May 20:22Buy It Now for only: US £350.00Buy it now | Add to watch list

Automotive News (subscription) (blog)
Builder meets racers, and a hobby is born
Automotive News (subscription) (blog)
The soft-spoken Heifner, a Vietnam veteran, grew up in the tiny farming community of Newcomerstown, Ohio, halfway between Columbus and Pittsburgh, where his father ran a sporting goods store. Heifner started competing in soapbox derby races at age 11.

£350.00End Date: 20-Jun 19:32Buy It Now for only: US £350.00Buy it now | Add to watch list

£450.00End Date: 22-May 19:55Buy It Now for only: US £450.00Buy it now | Add to watch list

The Courier-Express
Brockway Cubmobile Races scheduled for Sunday
The Courier-Express
BROCKWAY — A “cubmobile” is similar to a soapbox derby car. The vehicle is a 4-foot ... The “cubmobiles” will take to the streets Sunday at St. Tobias Catholic Church as part of Brockway Cub Scout Pack 40's 6th Annual Cubmobile Races. The Brockway ...

Simcoe.com
Soapbox derby teaches Wasaga Scouts teamwork
Simcoe.com
The kids get trophies for winning races, and for having the best-decorated cars. This year, the participants will also get badges. Angerman expects about 15 teams, with Beavers racing against Beavers, Cubs against Cubs, and Scouts against Scouts.

£450.00End Date: 15-Jun 19:55Buy It Now for only: US £450.00Buy it now | Add to watch list

When you are sitting on the start line of a race, you have a fixed amout of potential energy. The secret to winning is to convert as much of that energy as possible into speed, and to do that you need to minimise the energy you lose to moving air out of the way and rotating your wheels.

A rotating wheel has 5 sources of drag/energy loss;

• Rolling resistance - the drag caused by your tyre's contact with the road surface
• Bearing resistance - the drag caused by your wheel's bearings
• Rotational inertia - the energy needed to spin your wheel up to speed (a.k.a the flywheel effect)
• "Displacement" drag - the aerodynamic drag caused by moving the wheel through the air
• Rotational drag - the aerodynamic drag caused by spinning the wheel (a.k.a the windmill effect)

Drag source
Behaviour
Rolling resistance
Increases with total weight. Decreases with tyre pressure. Tends to decrease with wheel diameter 
Bearing resistance
Decreases with wheel diameter
Rotational inertia
Increases with wheel diameter
Displacement drag
Increases with speed and wheel frontal area
Rotational drag
Increases with speed and wheel diameter

 

 

Calgary Sun
Scouts Canada takes to the streets: A Q&A on Soapbox Derby Racing
Calgary Sun
Exhilarated screams echoed down the steep slope of Lake Ontario Drive in southeast Calgary Saturday afternoon as Scouts Canada kicked off their 16th annual Soapbox Derby Race. In celebration of the 100th anniversary of Scout Cubs in Canada, ...

Scouts Canada finishes first: A Q&A on Soapbox Derby Racing
Calgary Herald
Exhilarated screams echoed down the steep slope of Lake Ontario Drive in southeast Calgary Saturday afternoon as Scouts Canada kicked off their 16th annual Soapbox Derby Race. In celebration of the 100th anniversary of Scout Cubs in Canada, ...

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North Neighbor News
Derby Downs has plenty going on this summer
North Neighbor News
Alongside the local derby races and the All American Soap Box Derby, the famous hill at Derby Downs is used for other events such as the popular gravity racing challenge STEM team competition for middle school and high school students. This year, the ...

Suburbanite
Derby Downs has plenty going on this summer
Suburbanite
Alongside the local derby races and the All American Soap Box Derby, the famous hill at Derby Downs is used for other events such as the popular gravity racing challenge STEM team competition for middle school and high school students. This year, the ...

and more »

Chippenham gears up for soapbox derby
The Wiltshire Gazette and Herald
CHILDREN and adults will be saying ready, steady, go as a soapbox derby will take to the streets of Chippenham. Organised by the Chippenham BID and Chippenham Town Council, the inaugural event promises to see thrills and spills as competitors race ...

Gloucestershire Live
Wacky Races are returning to Gloucestershire this month
Gloucestershire Live
This year the Ben Wernham Fund will be the main beneficiary of the Tetbury race. Ben became a tetraplegic after a life changing accident while on holiday in 2016. Money raised will be used go towards building works that will allow him to return home.

£20.00 (0 Bids)End Date: 17-May 18:34Bid now | Add to watch list

IN PICTURES: Shipham soap box derby
Weston & Somerset Mercury (registration)
Shipham soapbox derby will take place in the sledging field, off Top Road. SF 01,05,17. Shipham's soap box derby drew a big crowd on Monday, as brave villagers made the most of their bank holiday by hurtling down the sledging field, off Top Road.