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11 votes

Why is there a bend in the Lomonosov Ridge?

geophysics plate-tectonics arctic ocean-ridge asked Jan 29 '15 at 10:30

9 votes

Did an impact crater influence the formation of uranium deposits in South Australia?

geology geochemistry earth-history uranium asked Mar 25 '15 at 14:10

9 votes

Did Britain send convicts to Canada during the colonial era?

british-empire united-kingdom colonization crime canada asked Jul 6 '15 at 5:02

history.stackexchange.com

8 votes

Source of water for the Great Artesian Basin in Australia

hydrology groundwater asked Mar 1 '15 at 9:53

8 votes

Localized stabilisation of Lunar lava tubes

civil-engineering geotechnical-engineering reinforcement rock asked Mar 25 '15 at 4:26

8 votes

Did a crater cause the break up of Gondwanaland & separate Australia from Antarctica

tectonics continental-rifting asked Mar 25 '15 at 13:22

7 votes

What ozone depleting chemicals can salt produce?

atmosphere volcanology geochemistry volcanoes ozone asked Mar 24 '15 at 4:23

7 votes

Do different lavas have different volcanic volatiles associated with them?

volcanology geochemistry volcanoes asked Feb 13 '15 at 11:01

7 votes

Impact of space junk on Earth based space elevators

debris space-elevator asked Aug 18 '15 at 1:25

Top Answers

142

If the astronauts on Apollo 11 had landed safely on the moon but could not take off, would there have been a rescue mission?

Why does reboot and poweroff require root privileges?

unix.stackexchange.com

Why doesn't the sun reach its highest point overhead at exactly 12:00 noon?

Why does the Channel Tunnel enter the ground around 10 km from the coast?

What is the purpose of these diversions in a natural gas line?

Is it possible for rivers to freeze completely and stop flowing?

Why was the initial theory of plate tectonics so controversial?

Why do earth cuts sometimes have steps on their walls

Can I use AutoCAD to learn mechanical engineering by DOING (like programming)?

Did the third US atomic bomb disappear without a trace?

history.stackexchange.com

What made bronze the first widely used (non-ornamental) metal in human civilization?

How and why do these tree-like river structures form?

What causes moonquakes?

Is stainless steel plating possible?

Is a circle the strongest 2D shape for containing internal pressure?

How was surveying for maps done before lasers?

What sort of analysis was performed before “modern” computing and the invention of finite element analysis and computational fluid dynamics?

Could you feel the wind on Mars?

Is there a difference between rock and stone?

How do space suits offer heat protection i.e. during the lunar day?

Is the magma in one volcano different from the magma in every other volcano?

How do scientists measure the age of old animal remains?

What is the shortest path between two points on Earth's surface?

What are grads used for on a scientific calculator?

Was smoking allowed aboard hydrogen-filled zeppelins?

history.stackexchange.com

What kind of math do engineers really use?

Is Linux more sustainable than Windows?

sustainability.stackexchange.com

Eclipse, Hurricanes, Earthquake…Related Events?

What conditions could produce 50 km long lava tubes?

How to learn the different types of rock