What are open and closed strings?

Mar 16, 2017 ... How did the genius Albert Einstein learn physics ... Okay where did he find hard questions from, when he was an undergraduate? May 3, 2017 ... Albert Einstein is justly famous for devising his theory of relativity, which revolutionized our understanding of space, time, gravity, and ... Mar 14, 2023 ... Albert Einstein's theories of relativity have been proven to be true ... Did the James Webb telescope really find evidence of alien life? In 1905, Albert Einstein discovered light particles known today as "photons." He predicted that photons above a certain energy level would eject electrons ... Feb 10, 2022 ... Einstein set out to calculate the correction to Newton's result. He found it was exactly what was needed to account for the observed precession. May 31, 2017 ... “It's worth asking why Einstein discovered a new theory and his contemporaries did not. Both Lorentz and Poincare had already come up with ... Jan 14, 2019 ... More than 100 years ago, Albert Einstein and Wander Johannes de Haas discovered that when they used a magnetic field to flip the magnetic ... Jun 5, 2018 ... Said Einstein, “Most teachers waste their time by asking questions that are intended to discover what a pupil does not know, whereas the true ... Aug 1, 2019 ... Certain behaviors of his - like disliking touch, having difficulty in social situations, and having trouble in school - were in line with what ... In 1905 Einstein discovered the special theory of relativity, establishing the famous dictum that nothing—no object or signal—can travel faster than the speed ...