/u/OculoDoc's posts

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In an absolute vacuum, does the diameter of a laser beam change over distance?

4957 upvotes • r/askscience

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I want to work out if two datasets are correlated. Dataset #1 recorded the temperature once per day, from 10y ago until today. Dataset #2 recorded the unemployment rate once per week, from 100y ago until today. Can I calculate the strength of the correlation between the temp and unemployment rate?

1 upvotes • r/askscience

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How does gravity work?

1 upvotes • r/askscience

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How is the sea-floor mapped on Google Earth? What resolution is possible (at a depth of 4.5km, for instance?

1 upvotes • r/askscience

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How do "gun" controllers know where you are pointing, in video games?

1 upvotes • r/askscience

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How does gravity work?

1 upvotes • r/askscience

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What would be an interesting survey / observation / experiment to undertake on a private island?

1 upvotes • r/askscience

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If everyone on earth took a photo of the moon with their smartphone, could the image data be merged and averaged to create a single, ultra-high resolution image?

1 upvotes • r/askscience

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Can anyone tell me anything about Smooth Island (Tasmania) which is not on Wikipedia?

1 upvotes • r/AskHistorians

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Does laying on your left side make you more prone to burp and fart?

1 upvotes • r/askscience

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Title	Upvotes	Subreddit	Mark as read	Favorited	Rating	Add to a list
In an absolute vacuum, does the diameter of a laser beam change over distance?	4957	askscience
I want to work out if two datasets are correlated. Dataset #1 recorded the temperature once per day, from 10y ago until today. Dataset #2 recorded the unemployment rate once per week, from 100y ago until today. Can I calculate the strength of the correlation between the temp and unemployment rate?	1	askscience
How does gravity work?	1	askscience
How is the sea-floor mapped on Google Earth? What resolution is possible (at a depth of 4.5km, for instance?	1	askscience
How do "gun" controllers know where you are pointing, in video games?	1	askscience
How does gravity work?	1	askscience
What would be an interesting survey / observation / experiment to undertake on a private island?	1	askscience
If everyone on earth took a photo of the moon with their smartphone, could the image data be merged and averaged to create a single, ultra-high resolution image?	1	askscience
Can anyone tell me anything about Smooth Island (Tasmania) which is not on Wikipedia?	1	AskHistorians
Does laying on your left side make you more prone to burp and fart?	1	askscience