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Probability question - time to achieve a given sequence of coin flips
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19
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372
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April 28, 2026
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The Great Ongoing Space Exploration Thread
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2383
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57648
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April 26, 2026
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Serious question about coconuts
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33
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585
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April 17, 2026
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How long for a spacecraft to reach Tau Ceti at 1 g?
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55
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855
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April 11, 2026
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Antimatter-matter equality questions
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28
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707
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April 6, 2026
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Tails and half tails on human (ancestors)
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7
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303
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January 30, 2026
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What is the longest distance pair of acoustic mirrors?
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15
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370
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January 24, 2026
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Gun sighting equation and trigonometry
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15
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339
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January 21, 2026
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YouTuber builds a camera that films light at 2 billion fps
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0
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111
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January 3, 2026
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Beyond General Relativity
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18
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557
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December 31, 2025
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How many roots are there in a square root?
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32
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601
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December 23, 2025
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Electromagnetic analogs in General Relativity
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5
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137
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December 21, 2025
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Plastic Recycling Breakthrough or scam
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3
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142
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December 20, 2025
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The creation of the planets in our Solar System
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44
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809
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December 1, 2025
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Mars impact lunar origin theory: How does the Moon reach a stable, nearly circular orbit?
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23
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427
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November 11, 2025
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Is a Category 6 Hurricane Meteorologically Possible?
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29
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758
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October 31, 2025
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2025 Nobel Prizes
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22
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530
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October 13, 2025
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Some questions related to particle physics and cosmology (Higgs field, dark energy, and more)
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6
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144
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October 6, 2025
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Why is a spinning Black Hole distinct from one that doesn't? How does a Black Hole even spin? Why is it important?
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74
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919
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October 3, 2025
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Three Against the System: An Algebra Action Movie
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5
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110
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September 17, 2025
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Is it possible to detect light without receiving it?
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24
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448
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September 13, 2025
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How to calculate (handicapped) ramp effort to push?
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9
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265
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August 30, 2025
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Bridge to Sicily - what are the (span) limits?
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44
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813
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August 29, 2025
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Explain electroweak unification me
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7
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218
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August 27, 2025
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Are there any cases where the holotype of an extent animal turns out to have been very unusual?
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15
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369
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August 21, 2025
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17-year-old refutes math conjecture, enters PhD program without a degree
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130
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1724
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August 6, 2025
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If Betelgeuse Went Supernova
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30
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656
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August 1, 2025
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Was there an earlier attempt to build a Channel Tunnel?
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10
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482
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July 23, 2025
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Units for Temperature Measurement
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27
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511
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July 12, 2025
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James Webb Space Telescope general discussion thread
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1010
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37565
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June 27, 2025
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