A step-by-step guide to help you fill out a W-4 Nora Carol Photography / Getty Images IRS Form W-4 dictates how much money is withheld from your gross pay for taxes. Step 1 requires you to input ...
Feb. 6, 2026 Inspired by the shape-shifting skin of octopuses, Penn State researchers developed a smart hydrogel that can change appearance, texture, and shape on command. The material is programmed ...