-
Recent Posts
- Life around Manhasset Bay
- Hanauma Bay for the chronically overprepared
- Kayak to Kaneohe Sandbar – sunken at high tide
- Why does my snorkel mask fog up?
- Waikiki & Honolulu landmarks seen from departing flight DL650
- Actual landing flight path of Delta 650 at JFK runway 22L
- Reign Ares as big-wheel skates for urban marathons
- What are carbon-fiber inline skates ?
- Big Wheels on Carbon Hockey Skates
- Where to Inline Skate on Long Island
- Check that your sunglasses block out all UV rays
- Launching Project Bach Wrote What ?!
Top Posts
- What Exactly is a Peeled Extreme Beef Tenderloin from Costco?
- Asian-fit helmets are a lot of hot air
- Hanauma Bay for the chronically overprepared
- Learn the Two-foot Grapevine on Inline Skates
- Ice Skating as a Sequence of Falling and Recovery Steps
- What happens when you let saturated salt water dry up completely?
- How to Inline Skate
- Learn to Skate the Two-foot Grapevine Analytically
Categories
- Classical Music (16)
- Cello (11)
- Composition (6)
- Free Sheet Music (16)
- Fun (82)
- Being a Wikipedian (43)
- Drawings and Paintings (7)
- Gourmet (3)
- Hawaii (5)
- Ice Skating (4)
- Inline Skating (23)
- Photography (30)
- Travel (28)
- Planes (32)
- Flight Simulations (7)
- HHAMS (18)
- RC Planes (12)
- Real Planes (3)
- Science (11)
- Atheism (3)
- Debuking Pseudoscience (2)
- Evolution (6)
- Short Stories (3)
- 中文 (14)
- Classical Music (16)
Archives
- December 2025 (4)
- November 2025 (2)
- November 2024 (1)
- October 2024 (2)
- August 2024 (1)
- June 2024 (1)
- March 2024 (1)
- January 2024 (1)
- August 2022 (3)
- July 2022 (2)
- June 2022 (1)
- May 2022 (1)
- April 2022 (2)
- March 2022 (2)
- November 2021 (1)
- October 2021 (9)
- September 2021 (1)
- October 2020 (1)
- August 2020 (1)
- June 2019 (4)
- April 2019 (1)
- March 2019 (1)
- January 2019 (1)
- December 2018 (5)
- November 2018 (1)
- May 2018 (1)
- April 2018 (1)
- January 2018 (1)
- December 2017 (5)
- November 2017 (2)
- October 2017 (3)
- June 2017 (3)
- April 2017 (6)
- March 2017 (2)
- February 2017 (9)
- December 2016 (10)
- November 2016 (3)
- September 2016 (1)
- August 2016 (2)
- July 2016 (1)
- May 2016 (4)
- April 2016 (3)
- March 2016 (2)
- December 2015 (1)
- October 2015 (1)
- September 2015 (1)
- August 2015 (1)
- December 2014 (1)
- July 2013 (4)
- June 2013 (6)
- May 2012 (1)
- March 2012 (1)
- February 2012 (2)
Meta
-
-
Monthly Archives: May 2022
Inline skating as rhythmic falls and recoveries

Some of us argue that skating consists of repeated cycles of falls and recoveries. Specifically, a skater deliberately moves her upper body such that shifted center of gravity causes her to “fall”. During this fall, she continues to glide on one skate. But at the same time she moves her other skate, the free skate, towards the projection on the ground of her shifting center of gravity, with the aim to recover from the fall by planting the free skate onto the new projected center of gravity. The process now repeats, with the free skate becoming the gliding skate.

If this fall and recovery sound like walking… well, it is walking, but with a special skating gait. In the sequence shown, the skater leans to the left while gliding on his left skate. He is about to fall to the left, but during the fall he moves his right skate, the free skate, over to his left side. He catches his balance at the last second, by planting his right skate on the projection of his shifted center of gravity. Continue reading
