To understand torque-induced precession, we must start by looking at the relationship between angular momentum and torque. Angular momentum is a vector quantity dependent on an object’s moment of inertia and angular velocity. Torque is also a vector quantity that represents the amount of force necessary to rotate an object along a given axis. These two quantities are directionally perpendicular to one another. The torque causes a change in direction of the angular momentum, but the magnitude remains unchanged. Thus, the bicycle wheel is able to spin gyroscopically, or precess, along its horizontal rotational axis in opposition to its vertical rotational axis.
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The Orchid is incredible - not only are there thousands of species all over the world, but this flowering plant is a master of mimicry. Below are 10 quirky and beautiful species of orchid which closely resemble other living creatures.
1. Flying duck orchid (Caleana major)
2. Monkey orchid (Dracula simia)
3. White egret flower (Pecteilis radiata)
4. Naked man orchid 🤣 (Orchis italica)
5. Dove orchid (Peristeria)
6. Laughing bee orchid (Ophrys apifera)
7. Swaddled baby orchid (Anguloa uniflora)
8. Moon orchid which appears to have a tiger inside (Phalaenopsis amabilis)
Non-Canadians about the picture of a moose in my post about animal sizes: Moose aren’t that big, that’s photoshopped!
Me: ...You’ve never seen a moose irl, have you?
For context about how big moose are, in Canada it’s considered common knowledge that moose are so massive that if you come across one on the road you’re more likely to die from crashing into one than they are. It’s legit safer to swerve into a tree than a moose.