Properties of Metalloids-What are the Physical Properties of Metalloids? What are the Physical Properties of Metalloids? The Physical properties of Metalloids are the characteristics that can be observed without changing the substance of the elements in a group into other substances.hat are the Physical Properties of Metalloids? The Physical properties of Metalloids are the characteristics that can be observed without changing the substance of the elements in a group into other substances.
Quick Answer. Hummingbirds fly backwards, and they are the only birds capable of doing so. When using this unique ability, hummingbirds may reach speeds of 25 to 30 mph as they go. These birds have flexible wings that they can rotate in swift circles to help fly in reverse.
1. FLIGHT. Hummingbirds can fly right, left, up, down, backwards, even upside down. While other birds get their flight power from the downstroke only, hummingbirds have strength on the up-stroke, as well. A hummingbird's wing is flexible at the shoulder, but inflexible at the wrist. When hovering, hummingbirds hold their bodies upright and flap their wings horizontally in a shallow figure-8.