/u/JoshuaSlowpoke777's posts in /r/askscience

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Assuming Mars once had oceans and continents, is the Continental arrangement of Mars more reminiscent of a single supercontinent or something more like modern Earth’s continental arrangement?

13 upvotes

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When a peregrine falcon dives towards its prey at terminal velocity, does it kill the prey on impact by ramming it head-on, or does it deliver the fatal blow some other way?

5 upvotes

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If a space probe intended to explore Venus’s atmosphere by flying through it arrived at the Venus-Sun L5 Lagrange point, and decelerated in order to get onto an aerobrake trajectory, how long would it take to arrive at the Venusian atmosphere and transition to atmospheric flight?

4 upvotes

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Because stars generate elements such as silicon and iron, how do they release these elements, and how do they ultimately end up incorporated into complex substances like stone and ore?

2 upvotes

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How common or rare is nitrogen in asteroids?

1 upvotes

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I watched a video on vermicomposting in preparation for a project. The video specifically recommended using Redworms (Eisenia fetida) to break down food waste. What does that specific species of worm do that’s ideal for vermicomposting?

1 upvotes

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Could starch from common foods, such as bread and potatoes, be extracted and used to make a slow-acting energy bar? If it’s possible, how could this be done?

1 upvotes

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Why do some nitrogen-based compounds tend to expand human blood vessels?

1 upvotes

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Are domesticated dogs able to read human emotions even without a line of sight, such as from a neighboring room in a house?

1 upvotes

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Have river otters ever been observed using tools, or just sea otters?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Assuming Mars once had oceans and continents, is the Continental arrangement of Mars more reminiscent of a single supercontinent or something more like modern Earth’s continental arrangement?	13
When a peregrine falcon dives towards its prey at terminal velocity, does it kill the prey on impact by ramming it head-on, or does it deliver the fatal blow some other way?	5
If a space probe intended to explore Venus’s atmosphere by flying through it arrived at the Venus-Sun L5 Lagrange point, and decelerated in order to get onto an aerobrake trajectory, how long would it take to arrive at the Venusian atmosphere and transition to atmospheric flight?	4
Because stars generate elements such as silicon and iron, how do they release these elements, and how do they ultimately end up incorporated into complex substances like stone and ore?	2
How common or rare is nitrogen in asteroids?	1
I watched a video on vermicomposting in preparation for a project. The video specifically recommended using Redworms (Eisenia fetida) to break down food waste. What does that specific species of worm do that’s ideal for vermicomposting?	1
Could starch from common foods, such as bread and potatoes, be extracted and used to make a slow-acting energy bar? If it’s possible, how could this be done?	1
Why do some nitrogen-based compounds tend to expand human blood vessels?	1
Are domesticated dogs able to read human emotions even without a line of sight, such as from a neighboring room in a house?	1
Have river otters ever been observed using tools, or just sea otters?	1