a thumb tack is a simple machine called the lever
A lever
There's a rule of thumb when it comes to complex machines. If it can't be made with LEGO's, it's complex.
A lever is simply a solid structure on which forces act. The human thumb is therefore made up of a number of classic levers. The joints make up the fulcrums, the tendons attachment points apply the effort, and the force is applied at the end of the thumb.
Since you u have nerves on the tip of ur thumb once you touch the hot surface it temporarily disables the nerves on ur thumb
1 gram
Yes, a fan is a compound machine. This is because it is made up of several simple machines connected together.
Saddle Joint
Thumb abduction and adduction is in the sagittal plane. However, finger abduction and adduction is in the frontal/coronal plane. Do these movements in the anatomical position and that will help you see that the thumb is not abducting or adducting in the frontal plane rather the sagittal plane.
A bike, a car, a plane, a helicopter, or a thumb!
A lever
Auto Matic Signatures
There's a rule of thumb when it comes to complex machines. If it can't be made with LEGO's, it's complex.
This is a simple sleight of hand. Both hands have a thumb. Simply tuck one into the hand, and put the other in it's place. The rest is show-man-ship.
most have a thumb screw on top of the blade loosen that, adjust blade and retighten
The number of crew on a plane depends on what type of plane it is. But I would say a good rule of thumb is; there is enough.. Even sometimes too many. And on a side note, asking questions like this is a great way to get questioned by Homeland Security
hold things like you can hold your ball, hold your cell phone, telephone, remote, and etc.
The octet rule is a simple chemical rule of thumb that states that atoms tend to combine in such a way that they each have eight...