What If Earth's Gravity Doubled Overnight?

This video delves into a hypothetical scenario where gravity suddenly doubles. It starts with the acute human experience, highlighting how daily activities become incredibly strenuous due to increased body weight, leading to rapid cardiovascular strain and potential heart failure for many individuals. The narrative then transitions to structural engineering failures as buildings collapse under the new load, escalating to catastrophic environmental changes like increased atmospheric pressure and widespread erosion. Animals face similar challenges, with large mammals struggling to move and birds unable to fly. Finally, the video concludes by addressing severe geological consequences such as intensified tectonic activity and volcanic eruptions, leading to a complete breakdown of civilization within weeks. Ideal for those interested in physics, disaster scenarios, or thought experiments about Earth's resilience.