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Sierra Club Wilderness 2026 Wall Calendar
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The Hoberman Original Sphere Glow Expanding Toy from University Games puts Chuck Hoberman's iconic isokinetic-mechanism sphere into a glow-in-the-dark variant, where the same geometric expansion-and-contraction motion now charges under ambient light and glows softly once the room goes dark. Chuck Hoberman patented the original Hoberman Sphere design in the late 1980s, and the format has remained one of the most recognizable science-and-engineering demonstration toys ever since. The Original Glow version expands from 9.5 inches up to 30 inches, from Hoberman.
Kids who already love mechanical curiosities will find the Sphere Glow adds an evening play mode that the standard sphere does not deliver, and parents shopping for a STEM-leaning gift will get a toy that doubles as a bedroom-decor piece during nighttime wind-down routines. The Hoberman Sphere format also tends to draw curiosity from bystanders who pick the sphere up to manipulate it themselves, which makes the toy a credible conversation piece across household visits and classroom science demos. The Glow variant also appeals to kids transitioning between active play and bedtime routines. The Hoberman Original Sphere also tends to last across years of handling because the isokinetic mechanism uses simple geometry rather than fragile internal motors or batteries. The Glow variant adds visual appeal without compromising the durability that the standard sphere is known for.