pneumatic

Examples of pneumatic in the following topics:

• Characteristics of Birds

  • Several modifications are found in birds to reduce body weight, including pneumatization of bones.
  • Pneumatic bones are hollow rather than filled with tissue .
  • Pneumatic bones are not found in all birds; they are more extensive in large birds than in small birds.
  • Not all bones of the skeleton are pneumatic, although the skulls of almost all birds are.
  • The air sacs that extend into bones, making them pneumatic, also join with the lungs and function in respiration.

• Collecting Gases Over Water

  • This arrangement is called a pneumatic trough, and it was widely used in the early days of chemistry.
  • O2 gas is collected in a pneumatic trough with a volume of 0.155 L until the height of the water inside the trough is equal to the height of the water outside the trough.

• Paranasal Sinuses

  • The paranasal sinuses form developmentally through excavation of bone by air-filled sacs (pneumatic diverticula) from the nasal cavity.

• Outdoor Recreation

  • The 1890s saw one of the biggest bicycle crazes of all, driven by several significant developments in bicycles: the invention of the "safety bicycle" with its chain-drive transmission, whose gear ratios allowed smaller wheels without a concurrent loss of speed, and the subsequent invention of the pneumatic (inflatable air-filled) bicycle tire.