What If Gravity Increased 1% Every Second?

🌍 What if gravity rose 1% every second? From a quiet street to a black hole in ten minutes. Earth gets 1% heavier every second, and nothing else changes. We watch a neighbourhood, a bridge town, two cities, a forest valley, the coast and a pyramid, then the whole planet and the Moon from space. Everything happens in real time, except for a short slow-motion ending. 🔥 At 72 °C (162 °F), the air is already cooking the leaves and the grass 🏙️ At less than three times normal weight, the towers fall straight down 🌋 At 100 times normal gravity, no hill can stand taller than about 90 m (300 feet) 🛰️ Satellites fall in, the fastest at about 2,700 km a second (1,700 miles a second) 🌑 The Moon is pulled in and hits at about half the speed of light 📐 What we assume Only the weight changes: Earth keeps its size, its air and its rocks. Apart from the rising gravity, everything shown is real physics; only the camera floats. Past about 10,000 times normal gravity, the numbers are estimates based on real data. ⏱️ Chapters 0:00 Intro 0:20 An ordinary evening 1:02 The birds come down 2:03 The bridge snaps 2:20 Towers fall straight down 2:58 Power lines snap 3:21 The forest burns 3:49 The sea sinks 4:27 Satellites fall 5:25 The pyramid crumbles 5:56 The glacier pours 7:02 The ground glows red 7:42 The air turns brown 7:57 The whole planet glows 8:43 The highest satellites fall 9:56 The Moon starts to fall 10:50 The Moon hits 11:14 The sky shrinks 11:48 Earth becomes a black hole 📚 Sources Niklas & Spatz 2004, PNAS (how tall trees can stand under their own weight): https://pmc.ncbi.nlm.nih.gov/articles... Virot et al. 2016, Phys. Rev. E (when trees snap): https://doi.org/10.1103/PhysRevE.93.0... 🔔 Subscribe for more what-ifs: one thing changes, and we watch what happens. #whatif #gravity #physics