98 Would somebody from the middle ages be able to identify an atomic / nuclear bomb? 2017-03-18T13:32:23.633
76 How many cows would you need to drop on Mars to successfully terraform it? 2019-11-26T03:09:32.670
71 Why would any interstellar starship still bother with streamline body design? 2017-01-13T06:09:21.663
57 Can stone be "recycled" by melting and cooling it? 2017-06-30T08:45:23.967
52 How to be hidden from world for a year 2016-12-12T09:05:39.597
52 What possible scientific reasons could there be for a vampire to only be killable via wooden stake to the heart? 2017-08-25T08:35:01.403
48 How would you know your floating island was losing altitude? 2018-02-15T14:17:40.940
48 Learning new physics from a superhero 2018-07-17T17:45:28.763
48 Given immortality can animals become intelligent? 2018-09-24T14:26:12.337
43 Does knowing a technology exists make it develop faster? 2017-01-04T03:58:52.017
38 Evidence of spacetime anomaly in local geology? 2018-05-01T15:42:20.783
36 Why did Europeans not widely domesticate foxes? 2019-04-22T18:55:30.213
34 The Heisenberg Uncertainty Ray - A Hyper-Scanning Doomsday Weapon 2018-12-02T07:51:56.030
32 Which jobs could western geniuses, who lived between 1643-1900, have in the modern age related to their talents? 2018-08-10T12:22:38.493
29 How to make a metal with extraordinary property worthless? 2018-12-04T08:29:37.017
27 Humans as batteries; how useful would they be? 2016-10-06T17:27:42.280
27 Spaceflight without transistors and nuclear power - how to bend the history of physics? 2017-11-12T12:59:19.180
26 What happens when a moving vehicle loses all its kinetic energy at once 2018-07-05T03:12:25.680
26 Which plant species would be most likely to recover after a decade of no light? 2018-07-18T02:49:51.687
26 Everyday tasks on a space ship 2019-02-13T22:40:59.877
25 Could a human baby develop and grow into an adult under constant 3-4G? 2016-04-27T15:39:46.057
25 What could limit geographically a resource such as an ore to a specific spot on a planet? 2017-08-24T19:11:27.953
25 Moonlight bright enough to see by 2019-10-09T15:33:53.450
24 How can I define good in a religion that claims no moral authority? 2019-04-11T13:33:08.480
23 What happens when two flames meet from opposite sides? 2019-01-14T13:02:51.740
23 Can an alien society believe that their star system is the universe? 2019-04-16T05:22:57.593
20 How would a physicist explain this starship engine? 2019-05-18T16:12:47.850
19 Blue soil (aka dirt) in an earth-like planet? 2017-10-08T15:21:22.563
19 A food item only made possible by time-freezing storage? 2019-09-20T00:29:58.673
18 Why would magic and science be split? 2015-10-16T02:06:51.340
18 What non-arachnid animal would be capable of spinning a web? 2017-10-01T18:36:12.383
18 Could you fly a Boeing 747 on Venus? 2019-11-05T22:17:32.370
17 Noah's flood actually happened. When does science prove that it happened? 2018-08-31T01:59:38.303
17 Swimming in space. What is the mechanism? 2018-11-13T18:11:00.357
16 Could plants develop sentience? 2016-01-23T01:52:17.033
16 How plausible is a 'tilted axis' planet with a "south pole" constantly facing toward its star? 2017-08-04T02:34:56.597
15 Best Ergonomic Design for a handheld ranged weapon 2019-07-31T18:53:02.540
14 Realistic Airships 2017-01-10T23:20:08.360
14 Inhabiting Mars versus going straight for a Dyson swarm 2019-03-17T23:44:52.343
14 Could I build a nuclear reactor based on Bernoulli's principle? 2020-01-14T02:43:56.867
13 Does anyone know of a poison that can be ingested and is undetectable in autopsy? 2016-12-31T15:26:04.393
13 Reverse engineering electronics 2017-07-27T09:30:58.740
13 What kind of planet would be needed to create aliens which are significantly larger and stronger than humans? 2017-10-27T23:27:28.813
13 How can a ship dock in space? 2018-06-13T11:30:21.590
13 How fast does an antimatter bullet need to move to pierce rather than explode? 2019-12-23T04:26:20.353
12 Is there any concrete benefit in justifying all supernatural phenomena with one system? 2016-12-29T06:07:44.320
12 Nuclear propulsion: viable long-term launch strategy? 2018-05-28T16:14:58.427
12 Surviving a planet collision? 2019-07-30T04:40:29.640
12 Pre industrial form of rapid mass transit over land 2019-11-18T16:03:11.743
11 How far would science advance if we lived in a cave? 2017-08-18T11:25:49.473
11 Could scientists test a theory of everything? 2018-06-01T11:52:25.033
11 What stops a race of giants from wiping out humanity? 2019-02-02T11:42:34.157
11 If quadruped mammals evolve to become bipedal will their breast or nipple change position? 2019-05-06T13:50:11.363
11 Myelination in cephalopods 2019-12-08T21:43:15.980
11 what makes a disease deadly? 2019-12-08T22:45:16.393
10 What would the next step be after code? 2017-03-02T00:38:47.570
10 Taxonomy of genetically engineered species 2018-04-10T12:05:53.643
10 What's a plausible way prove the existence of the “electron” to the doubters? 2018-06-04T23:58:12.427
10 Do moons determine the speeds at which tides move? Is there a limit to this speed? 2018-06-26T03:20:51.913
10 Fantasy and the germ theory 2018-10-30T05:58:41.423
10 How could these giant animals travel oversea? 2018-11-28T06:18:39.203
10 If we brought ancient germs to the present 2019-08-28T22:56:45.983
9 How to make magic different from science 2016-03-07T20:30:01.217
9 Earth as moon of Jupiter 2016-08-02T12:28:36.163
9 What tech is needed to make underground building cost effective? 2017-03-08T17:32:15.690
9 Would a base on the moon (military or otherwise) actually prove useful? 2017-04-18T06:59:52.000
9 How small of a planet can sustain life as a desert planet? 2017-05-16T00:07:22.907
9 Is it logically or scientifically possible to artificially send energy to the body? 2019-04-03T15:05:08.413
9 Is there really no realistic way for a skeleton monster to move around without magic? 2019-04-07T06:22:55.557
9 Is there a website that will run orbital simulations because I don't have a PhD in math 2019-08-02T00:11:02.127
9 Would sedation treat a seizure? 2020-02-19T00:59:12.263
8 Anti-matter containment 2016-09-16T09:35:49.817
8 Death Star-esque space ship in Earth's orbit - how to destroy it without destroying earth? 2016-10-16T18:54:39.887
8 How Effectively Could a Telescope Look Through a Wormhole? 2016-11-21T17:52:34.847
8 Ensuring genetic diversity in a small colony, by using artificial insemination? 2017-04-10T06:49:09.873
8 How might a roughly medieval healer detect lead levels in blood? 2017-06-28T22:23:23.953
8 How would magic make skeletons be able to move on a very realistic and logical scientific level? 2018-04-12T19:18:52.913
8 Some science or graspable logic behind a whole new world below the ocean on earth 2018-11-01T13:35:10.300
8 Possibility of changing universal constants to prevent cosmological events 2020-02-16T20:27:23.280
7 How many objects could you fit around a Lagrange point? 2017-03-07T09:02:00.137
7 Is it plausible that Venus was once swampy and reasonably habitable to Earth-like beings? 2017-06-28T18:16:26.747
7 Water-walking animal 2018-04-12T15:59:11.393
7 Projectile that crystallizes a target 2018-04-17T18:12:20.040
7 What is the most plausible way to rule out string theory? 2018-11-11T10:25:33.477
7 What could make a ship made of pumice seaworthy? 2019-02-04T07:17:10.703
7 Can we scale down humans to the size of a mouse? 2019-08-31T13:52:15.067
6 Elevator through the earth? Yay or Nay 2015-11-25T02:23:27.133
6 Can medieval humans lack the idea of magic? What would cause that? 2016-07-04T17:45:18.050
6 How would a floating island work? 2016-12-02T21:29:42.847
6 How to power thin contact lenses that let us browse the internet? 2017-01-27T06:38:26.890
6 Biologic advantage of magnetoception 2017-03-13T22:26:59.157
6 Alien knowledge in 3, 2, 1 2017-03-28T15:50:42.143
6 Can a 2D object living in a shadow be examined in a 3D world? 2017-08-19T00:28:49.530
6 Can a space station theoretically maintain an orbit around two separate astronomical bodies? Switching between the two cyclically? 2017-09-06T05:01:07.903
6 Time feels like it's going faster. Could this really be happening? 2017-10-16T00:01:54.983
6 What's a scientifically plausible method for cryopreservation? 2018-03-08T00:02:03.803
6 How do you study magic without it being a science? 2018-03-29T03:42:23.863
6 A cure, a vaccine, and one tricky disease 2018-04-18T21:29:21.497
6 Could Organic systems ever power circuits? 2018-06-18T12:04:15.017