The bifocal lenses are made from bilayer structures of liquid crystal (LC) cells and LC polymer. These lenses split light with a left-handed circular polarization (LCP) into two focused light ...

Suggest that students compare how free the single paper clip (or paper circle) is to move compared to a paper clip or paper circle that is part of a chain structure. For high school students, the ...

Apple has filed for a patent (number US 20250028179 A1) for “lens mounting structures for head-mounted devices.” It involves ...

Next, have two or three people connect the chains to "cross-link" the polymer. This can be done by having one student hold on to the shoulders of students on two different chains. Again have students ...