#ice star

[aura-eden]

ANDY GOLDSWORTHY, Ice Star, 1987

[blankinyourhead]

Andy Goldsworthy

[feral-babe]

Lake star ❄️🩵

[indecisivegloom]

[anythinggoe]

Ice Star 2019 – Preview – Anything GOEs

Our Preview post for next week’s Challenger event, Ice Star, is now live! Check out who’s competing, their music selections, best scores from last season, notable jumps, and more!

[zolwyo]

Thank you Johnny for everything ✨ I hope to see you skate live someday 😢😘

[asktinalove]

[wigmund]

From Earth Science Picture of the Day; January 17, 2017:

Ice Pattern on Pond Near Freeport, Maine Photographer: Clifford Rosen; Summary Authors: Clifford Rosen, Jim Foster

On a pond near my home in Freeport, Maine, on occasion I see curious holes such as this. Less than 1 in (2.5 cm) of ice the pattern reminded me of a neuron or skeletal osteocytes. Several of these holes could be observed across the pond but none was connected to each other. This is a fresh water spring fed pond that, as of mid-December 2016, was frozen 4 in (10 cm) thick.

These kinds of holes, sometimes referred to as an ice star, ice octopus or ice spider, are upflow holes and may be associated with springs, drainage holes, cracks, etc. In essence, water oozes from a spring, for instance, below the level of the ice through a small hole or crack and into a layer of snow covering the ice sheet that's being pushed down by the weight of a new snowfall. Water infiltrating the snow layers from the inflow hole causes the darkened veins or arms.

The central hole may remain open even when the air temperature is well below freezing. In this case, it's frozen over. The temperature was 15 F or -9.5 C when this photo was snapped. Photo taken on December 17, 2016.

Photo Details: Camera Maker: Apple; Camera Model: iPhone 6; Focal Length: 4.15mm (35mm equivalent: 29mm); Aperture: ƒ/2.2; Exposure Time: 0.0025 s (1/395); ISO equiv: 32.

Porter Landing, Maine Coordinates: 43.842869, -70.101289

Related Links

Ice Circles in a Pond

Ice Out on Sebago Lake in 2014

Student Links

Neuroscience For Kids - cells of the nervous system

Earth Observatory

On Thin Ice