Court orders Non-anonymous possible Anonymous to stop using real name
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Top 5 Most Popular Artificial Intelligence Posts
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Bristol board is a type of heavy, high quality paper which was originally produced in Bristol, England, in the early 1800s for the purpose o...
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← Older revision Revision as of 02:20, December 14, 2010 Line 16: Line 16: |era= |era= |types= |types= - |n...
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ABN Amro, the nationalized Dutch lender, announced on Friday that it would cut 2,350 jobs over the next three to four years, as it continues...
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Alyson Schafer's latest parenting book, Ain't Misbehavin' is an excellent companion to her Honey, I Wrecked the Kids ; the la...
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Home automation is quickly becoming the "new normal." Don't think you have a smart home? Think again - the technology is ther...
13 set 2011
Court Orders Non-anonymous Possible Anonymous To Stop Using Real Name
7 set 2011
Real Or Fake Videos
It happens. Someone sends you a video but you can’t tell if it is real or fake. But what can you do? Physics. That’s what you can do. Typically, these videos show something flying through the air. Here are some things to look for that would show that it is fake:
- Real projectile motion has an object with a constant horizontal velocity and a constant acceleration in the vertical direction. If neither of these things are true, it could be fake.
- Time in the air. If it is plain projectile motion, you can calculate how long it should be in the air compared to how long it is actually in the air.
- Some videos are clearly possible, but maybe unlikely. How do you determine how unlikely something would be? You might have to model it (maybe with python) and see how often it works with some probability distribution of starting values.
- If the video doesn’t involve some type of projectile motion, you can still try to see if it agrees with some other fundamental physics concept.
Oh, and how do you get data from these videos? There are two common tools. Vernier’s Logger Pro software and Tracker Video analysis. Both can do the job. I prefer Tracker since it is free and has quite a few more features.
28 ago 2011
Novelties: Technology Blurs The Line Between The Animated And The Real
Novelties: Technology Blurs the Line Between the Animated and the Real
Backlink: http://feeds.nytimes.com/click.phdo?i=61f1997e98bebb8a560a69feddf42f37
25 ago 2011
Temple-inland Costs Investors $1 Billion Seeking Bid: Real M&a
Temple-Inland Costs Investors $1 Billion Seeking Bid: Real M&A
24 ago 2011
Hp Breakup Looming With Cheapest Technology Valuation: Real M&a
HP Breakup Looming With Cheapest Technology Valuation: Real M&A
22 ago 2011
Siemens Circling Invensys In Breakup Means 80% Boost: Real M&a
Siemens Circling Invensys in Breakup Means 80% Boost: Real M&A
2 gen 2011
Off the Shelf: Prosperity, Real or Imagined
Off the Shelf: Prosperity, Real or Imagined
Backlink: http://feeds.nytimes.com/click.phdo?i=132f4f08a0048b895ee941326653f6fc
1 gen 2011
Real Estate Developers Prosper Despite Defaults
Real Estate Developers Prosper Despite Defaults
Backlink: http://feeds.nytimes.com/click.phdo?i=c09723579def1b519603d3626c2c2ead
18 dic 2010
What’s a Quiet Guy Doing on Real Estate’s A-List?
What’s a Quiet Guy Doing on Real Estate’s A-List?
Backlink: http://feeds.nytimes.com/click.phdo?i=48a3ed21fbecb0848dc539e21be41b2e
Surprising Data in Real vs. Fake Christmas Tree Debate
Surprising Data in Real vs. Fake Christmas Tree Debate
Backlink: http://feeds.nytimes.com/click.phdo?i=04165f4aa4b615014ddfc88678f873dc
14 dic 2010
DealBook: Carlyle to Sell ManorCare Real Estate for $6.1 Billion
DealBook: Carlyle to Sell ManorCare Real Estate for $6.1 Billion
Backlink: http://feeds.nytimes.com/click.phdo?i=72d444e714de3d03c04eed148ab401f4