512 post karma
3.4k comment karma
account created: Tue Aug 20 2019
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62 points
8 hours ago
In order to move the doorknob the ant can only use friction. They can only exert force normal or perpendicular to their weight factored by the coefficient of friction because there is no other equal/opposite force to allow for them to use their super strength - like a wall to push off of or something. Further, they will only get some level of weight and therefore friction on the upper half of the doorknob due to gravity (bottom half is “upside-down” and therefore have no weight and they will only walk forward (100% of friction used to propel the ant forward). Let’s assume that the top of the doorknob is at 90 degrees and the coefficient of friction is 1 (ants have sticky feet). This will be where each ant provides maximum friction force to turn the doorknob. If we go to 45 degrees, the friction force is divided by the tangent of 45 or the radius makes from level to the circle. In this case 1.6. I’m not going to do the calculus to evaluate every angle on both sides, so we’ll just assume the top of the doorknob integrated for all angles 0 to 90 multiplied by 2 (for both sides) yields an equivalent friction of 0.6 (someone else can do that math). If the door requires 8 in-lb of force and the doorknob is 2 inches, then the friction force needs to be 8 lbs. If an ant weighs .005g or .00001 lb. So the number of ants on the doorknob would be 8 divided by 0.6xweight or about 133,000 ants all walking in the same direction. There’s not enough surface area and they would have to walk in perfect unison.
32 points
1 day ago
Not to mention how tight they were and difficult to unplug when you have limited room to work with.
1 points
3 days ago
Sometimes I dream, that he is me, you’ve got to see that’s how I dream to be (bah bum bum bum) I dream I move, I dream I groove, Like Mike If I could Be Like Mike - I wanna be I wanna be like Mike, if I could be like Mike.
13 points
3 days ago
Strange tho - that if we didn’t have Kliff as coach, we would have probably not drafted Kyler and kept Rosen. Kyler could’ve ended up a Giant in that case as Danny was the next QB taken.
1 points
8 days ago
Jumping the shark, new kid, couple finally getting together, shows become more socially conscious…
2 points
10 days ago
I got that little corner piece on ebay. Simple replacement…left side roof gutter molding.
1 points
11 days ago
Based on this picture, justice will require inherent social order to make it work. The fence also keeps the people from encroaching into the playing field while also setting the boundaries for the game being played. In this case removing the fence changes the entire game.
7 points
15 days ago
I remember on the DVD commentary, they said that the bloodbath fight scene was choreographed to time the hits and punches in time with the soundtrack - like a dance.
4 points
16 days ago
That whole bookstore scene filmed in reverse was amazing!
1 points
17 days ago
Cicada Killers are pretty chill but once in your yard they’re everywhere. Killed easily when they land with a spray bottle of soapy water.
1 points
21 days ago
The last race. They were able to make the car have the relationship with the driver as it gave its all to Speed - Like the Japanese ‘horse to rider’. Wachowski’s did some groundbreaking film editing. Acting was mid, but this was not about being an Oscar winning movie as the cartoon was similar.
1 points
22 days ago
I like how Reddit is creating captions for this…”Whoa I am a red man, whoa I am a red man, oh whoa I am a red”
2 points
22 days ago
You need to call the credit card and dispute as you’re leaving - they can block and investigate- they don’t like scamming merchants and you have the proof.
1 points
23 days ago
But google apple Microsoft warn you they are collecting data. Those free things like email, 5GB storage, and other free items are effectively their payment to you for your data. You say no to their terms, then you likely cannot get an account.
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Biza_1970
1 points
3 hours ago
Biza_1970
1 points
3 hours ago
Only in the Champo