Watch it dance in the wind; Helicoid III is marvel of engineering with kinetic components that seem to balance in midair. The aluminum and stainless steel sculpture moves on five independent and compound axes of rotation, allowing the sculpture to wind in the way only a helicoid – a non-rotary surface which can glide along itself – is able.
Art: HELICOID III
Aluminum kinetic sculpture which dances on five independent and compound axes of rotation.
Urban Trees 4 Collection
Location: Pier 32 Marina, National City – 32°39’09.2″N 117°06’32.2″W
Artist: Robert Pietruszewski
The (circular) helicoid is the minimal surface having a (circular) helix as its boundary.
Its name derives from its similarity to the helix: for every point on the helicoid, there is a helix contained in the helicoid which passes through that point.
The helicoid, after the plane and the catenoid, is the third minimal surface to be known.
The planar range of the helicoids extends through negative and positive infinity. Close observation shows the appearance of two parallel or mirror planes in the sense that if the slope of one plane is traced, the co-plane can be seen to be bypassed or skipped, though in actuality the co-plane is also traced from the opposite perspective.
This video makes it easier to understand a helicoid:
Quiz: Can you engineer a kinetic sculpture?
Are you able to name something that just keeps rotating upon itself?
What would you do if you had five gentle rotating axes creating energy?
10 Ways to Enjoy:
- Watch it rotate.
- Twiddle a rubber band.
- Ponder how it works.
- Set your parking reminder app.
- Wonder why they chose this location.
- Smell the sea air.
- Look at the water.
- Check out what cars are in the parking lot.
- Ask if the fire hydrant is part of the sculpture.
- Admire the drought tolerant landscaping.
Share your fun: #SanDiBAT
More: Robert Pietruszewski’s recent works are predominantly outdoor, wind-driven kinetic sculptures, in media including titanium, aluminum and stainless steel. He creates forms that are viscerally “readable” and blend naturally in engaging ways when redistributed by the wind. Using multiple axes of independent movement, symmetry is broken into dynamic presentations that lend themselves well to outdoor public works.