By immersing the small flask in a beaker of vegetable oil, she rendered the beaker invisible, except for its markings indicating volume levels. Kinzig explained that objects are visible due to light’s reflection (bouncing back from an object to the eye) and refraction (bending away from an object). The equipment was commonplace and inexpensive: vegetable oil, a pair of tongs, protective gloves, two glass beakers, and a small glass flask, with the last two items being transparent. Kelli Kinzig, the manager of Education Experiences at Marvel’s Universe of Super Heroes exhibit at the Center of Science and Industry (COSI) in Columbus, Ohio, talked to a local news station’s meteorologist through COSI’s demonstration of invisibility. Invisibility has multiple practical applications, not only for the military but also for radar, deep-sea sensors, super lenses, and, possibly, the development of “high-powered glasses” that would enable people who are currently considered too blind to see. As a result, we do not see the object it becomes invisible to us. Since the diverted particles no longer strike the object, they cannot bounce back or refract from the object and hit our eyes. She mimicked the way that water flows around a boulder in a river by directing a stream of light particles around objects. According to a Campus Life article concerning the inventor, Abelsky’s cloak is made of “a diblock copolymer that mimics the unusual refractive properties of the mineral calcite.”Ībelsky uses an analogy to explain how her device cloaks objects. Inspired by both her love of Harry Potter and fencing, a sport in which slashing and poking one’s opponent is possible, Northwestern student Julia Abelsky, who majored in both math and statistics, developed her nanoscale invisibility cloak. According to the company, it’s best to use the shield in an area with a “uniform background, such as foliage, sand, the sky, or asphalt,” so that the shield’s view matches the surrounding area. The effect can be a bit patchy looking, though. The device, manufactured by Invisibility Shield Company, diffuses light with a set of upright] lenses, so observers see a reflection of objects to their left and right rather than what’s directly in front of them. However, as the campaign demonstrated, invisibility devices need not be only for the wealthy few the shield, if mass-produced, should be well within most people’s means. Unfortunately, the shields will have almost certainly sold out by now. The full-size shield, measuring 37.4 x 25.6 inches (95 x 65 centimeters), costs $389. Most invisibility devices are pricey, but thanks to a Kickstarter campaign in April 2022, the Invisibility Shield set buyers back only about $65 for a small size (12.2 x 8.3 inches or 31 x 21 centimeters).
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