why do twisters go counter clockwise?
442630
this planet revolves around the sun ,which is a very powerfull all influencing movement.\nall life follows this path.\n\nall spirals in Nature turn anti clockwise.\nthe bean,or vine that winds its way up a tree.\nthe bath water running down the drain,the toilet water going down the bowl,the currants, in the seas and rivers\n\nthe spiral paterns in our bones,the way branches devellop on a tree spiraling up wards in protruding branches.\nwhen you walk in the dessert your path will vere towards this direction \nand is it hard to walk in a straight line,\nmany people right feet are larger than the left,so that you will walk in this curve.\nin construction or actions involving a lot of people,i always make paths ,roadways and trafic go in the anti clock wise direction\nthis results in less congestion or accidents and it is the more natural and comfotable direction for the people .\nputting them in a better mood to work.\n\nthe twister and huricanes and tornados and wheather paterns just follow every body else\nand contrary to myth or ignorence this direction does not change if you go to the other side of the planet,this is an old wive tale.\nif you put a bath tub on the plane and slowly drain it ,the direction does not change all of a sudden when you get to Australia.
943018
The main reason is to keep the driver away from the wall.  By running counter-clockwise, the driver is on the inside of the race track.
753244
Think of the wheels as spinning masses or revolving weights, in fact gyroscopes. \nEach wants to turn left or right while spinning but is constrained by it's axis,\nHowever both drift overtime.\nNow add another pair further back and wider apart, and this pair are not on the same line of travel.\nWith four wheels all wanting to drift the resultant direction becomes a straighter line.
217587
First I want to clear up that clockwise is really a 2-dimensional description of rotation, and planet rotation can be viewed in 3D so you can't really describe planet rotation as clockwise or counterclockwise. If you define an "up" and a "down" for the solar system, and then say "when viewed from above the solar system rotates counterclockwise", then the "anticlockwise" description works. For my answer we will assume you have done all this and that the solar system rotates counterclockwise, so there is no confusion from the wording of the question.\n\nThe reason the solar system rotates counterclockwise has to do with the way the gas clouds that created the solar system collided. They didn't collide head on. Think of cars travelling in opposite direction down an interstate hitting each other not quite head on (i.e. the left headlights of both cars smack together). When they do this they will spin out sideways - they will effectively rotate around each other (in North America with the cars driving on the right side of the road, they will rotate counterclockwise when viewed from above if they collide like this). The gas clouds did the same thing and their collision exceeded the critical density needed for gravity to take over and start forming the solar system, and as this matter collapsed to form the sun and planets, the rotation sped up. The rotation these gas clouds got from their collision gave momentum to the rotation of most matter in the solar system; the sun rotates in the same direction as those clouds did when they collided and so does most other things, including all the planets.\n\nSo that is why.
607437
Actually it is a bot more complicated than those answers would show.\n\nThe spinning wheels cause a gyroscopic effect which makes it easier to balance.
741307
Episodes of the Simpsons and urban legend have it that the spin of flushed water is determined by the hemisphere one is in, presumably because cyclones, hurriances, and other large-scale forces of nature spin in opposite directions in opposite hemispheres.\n\nUnfortunately the force that makes hurricanes and cyclones spin in opposite directions (the Coriolis force) operates on a very large scale, over thousands of miles in fact. The forces that determine whether the toilet flushes clockwise or counter-clockwise are a function of the toilet, no more, no less. The Coriolis force does not operate on such small scales as the whole manifestation of its effect is seen due to the difference in rotation between two points on Earth that are far apart.\n\nSo the answer to your question is "Depends on the toilet", nothing else.
1139143
Counterclockwise to both questions.
1021502
The shape and direction of the twist is given by Coriolis effect, which  says since everything is falling to the center of earth, and it is spinning, there developes a curve, just like the one you see on your toilet, as opposite of the one you'd see in other toilet in southern hemisphere (if you are in the northern one)
510921
No it does not. Takes more energy to twist them. If it was the same you would have a perpetual motion machine. No such thing. You are not creating energy you are only transforming it.
25693
Down. Clockwise or anti-clockwise rotation is very much dependent on the first impulse when you open the drain, with coriolis force a distant second.
591941
Because of the coriolis effect. However, this is 100% not true. The water could either flow clockwise, counterclockwise or straight down depending on the shape and curvature of the sink/toilet
529826
hold the light bulb with your left hand and spin the world clockwise with your right.
103089
Tell it to go in the other direction
1139376
It has something to do with being top heavy.  Each arm alternates front and back individually, however there are certain parts of the anatomy that bounce up and down simultaneously, causing interference on the forward arm side... This causes the duck waddle run,,,    They cant escape it!  Even if they put both hands up palms forward and run the carwash motion.  That causes certain anatomy to bounce side to side causing an uneven oscillation.  -- Dancing in a consistant slow bounce = graceful.  Figure skating is on skates (no bouncing) = graceful
308954
After the Earth formed and all the component asteroids and other proto-planetary debris coalesced the residual spin from the collisions left us spinning counter-clockwise.  Were there to be another collision, a series of collisions, or close interaction with some super-massive object (i.e. black hole, brown dwarf, etc.) with enough momentum or gravity to retard, stop or reverse our rotation, it could definitely do so.  Venus is an example of a planet in a retrograde rotation (probably because some massive impact reversed its spin), so it is definitely possible...hell, Uranus spins almost 90 degrees out of alignment with the orbital plane.  Most planets in our solar system spin in relatively the same direction, and that is likely to be the case in most systems in the universe, but it is by no means set in stone.
289183
Due to the effect, cyclones rotate counter-clockwise in the northern hemisphere, and clockwise in the southern hemisphere. However, contrary to popular opinion, it has no noticeable effect on the rotation of water in sinks and toilets - see the toilets/bathtubs section below.
595431
For the most part, yes. Low pressure systems in the Northern Hemisphere spin counterclockwise and Highs spin clockwise. The reverse is true in the Southern Hemisphere.