98 questions and answers in this section
Explain why skateboard wheels are made of polyurethane.

Explain why skateboard wheels are made of polyurethane.

Initially, skateboard wheels were made of metal or clay. It’s safe to say that it was far from the ideal ride: poor grip, discomfort, and...

Read full answer

Explain why ice hockey allows physical contact between players.

Explain why ice hockey allows physical contact between players.

Ice hockey was born in the late 19th century in Canada, largely inspired by ancient European games, but also by Indigenous games from North America. In the...

Read full answer

Explain why doing stretching in the morning can energize our day?

Explain why doing stretching in the morning can energize our day?

Morning stretching quickly stimulates blood circulation by waking up your still-numb muscle fibers after the night. This gradual activation promotes better muscle tone from the...

Read full answer

Explain why speed skaters wear tight-fitting suits in competition?

Explain why speed skaters wear tight-fitting suits in competition?

Speed skaters wear very tight suits for a good reason: to glide quickly without being slowed down by air. The more a suit floats or...

Read full answer

Explain why high jumpers use a back roll technique during their jump?

Explain why high jumpers use a back roll technique during their jump?

To clear a great height, everything revolves around the center of gravity, that famous natural balance of the body. The backflip technique allows the jumper...

Read full answer

Explain why golfers use different types of clubs on a course?

Explain why golfers use different types of clubs on a course?

A classic golf bag essentially contains three main families of clubs: woods, irons, and the putter. The woods (including the famous driver) are used to...

Read full answer

Explain why billiards requires a good understanding of angles and rebounds in physics?

Explain why billiards requires a good understanding of angles and rebounds in physics?

To become skilled at billiards, knowing how to manage angles is essential. When a ball strikes a cushion, its incoming angle directly determines its outgoing...

Read full answer

Explain why basketball prohibits dribbling beyond the 3-point line.

Explain why basketball prohibits dribbling beyond the 3-point line.

In reality, there is no official rule in basketball that prohibits dribbling beyond the 3-point line. Dribbling is completely free, whether it is inside or...

Read full answer

Explain why javelin throwers use a specific rotation technique during their throw?

Explain why javelin throwers use a specific rotation technique during their throw?

Javelin throwers use rotation to optimize the energy generated by their bodies. By executing this precise rotational movement, they accumulate a kind of momentum through...

Read full answer

Explain why are the Victoria Falls important?

Explain why are the Victoria Falls important?

Victoria Falls, located on the Zambezi River between Zambia and Zimbabwe, has been on UNESCO's famous list of World Natural Heritage Sites since 1989. It...

Read full answer