If you can’t fix it, you remove a few links from your chain and turn your bike into a single-speeder until you get to the next city, where you check into the local hostel to find another cycle tourist awaiting the return of their Rohloff hub or Pinion gearbox from Germany. You find...
A few years ago, I wrote a short document on methods for rapidly fabricating elements of mechanical systems entitledHow to Build Your Robot Really Really Fast. It was catered towards students in MIT's2.007introductory design and manufacturing class for which I was a lab assistant at the time. ...
both in terms of exposure and focus. We'd recommend using manual focusing when shooting the night sky because a good deal of light is required for the sensor in a camera to focus accurately. As the night sky is so dark, it won't be able to pick up enough light to hone ...
One of the most primitive types of gears we could look at would be a wheel with wooden pegs sticking out of it. The problem with this type of gear is that the distance from the center of each gear to the point of contact changes as the gears rotate. This means that the gear ratio ...
We can use (x, y) coordinates to describe any point along the outer edge of the circle. The x value or x-coordinate represents the distance traveled left or right from the center, while the y value or y-coordinate represents the distance traveled up or down. The x-coordinate is the co...
I will have a homogeneously wet pavement (along with a water friction force on the bottom of the wheel) so ##\mu## might be changed between simulations but...
den=[(La*Jequiv) (Ra*Jequiv+bequiv*La) (Ra*bequiv+Kt*Kb)]; G_robot_open= tf(num,den ); %for right wheel desired_linear_speed_R=0.6;% m/s desired_angular_speed_R= (desired_linear_speed_R)/r; Ktach_R =Vin/ desired_angular_speed_R ...
of charges—and the remainder. We thereby find a symplectically corresponding decomposition of the gauge potential into a part that is pure gauge and a remainder: call themXandY, respectively. If we single out the scalar degree of freedom of the electric field that is fixed by the Gauss ...
Adjust the tonal range of a photoLight: Adjust the overall tonal range of your image and have the ability to edit and share in HDR.(iPhone) In the Edit panel in loupe view, tap Light icon. (iPad) In the Edit panel menu in the loupe view, tap Light accordion. Tip: Swipe to the...
If you roll each circle along a 4-inch line, the first circle will cover the distance in a single full rotation; since the second circle's circumference is half that of the first circle, it has to complete two full rotations to cover the same distance. This explains why the two gears,...