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[92] [93] Due to their relatively small size (the median aerodynamic diameter of bacteria-containing particles is around 2–4 μm), [62] these can then be transported upward by turbulent fluxes [94] and carried by wind to long distances. As a consequence, bacteria are present in the air up to at least the lower stratosphere.
Air pressure actually decreases exponentially with altitude, for altitudes up to around 70 km (43 mi; 230,000 ft), dropping by half every 5.6 km (18,000 ft), or by a factor of 1/e ≈ 0.368 every 7.64 km (25,100 ft), which is called the scale height. However, the atmosphere is more accurately modeled with a customized equation for each layer ...
A nostril (or naris / ˈ n ɛər ɪ s /, pl.: nares / ˈ n ɛər iː z /) is either of the two orifices of the nose. They enable the entry and exit of air and other gasses through the nasal cavities. In birds and mammals, they contain branched bones or cartilages called turbinates, whose function is to warm air on inhalation and remove moisture ...
Atmospheric chemistry is a branch of atmospheric science that studies the chemistry of the Earth's atmosphere and that of other planets. This multidisciplinary approach of research draws on environmental chemistry, physics, meteorology, computer modeling, oceanography, geology and volcanology, climatology and other disciplines to understand both natural and human-induced changes in atmospheric ...
The effect of streamlining is made visible in a wind tunnel. Shaping the body to make it more streamlined reduces fuel consumption. A wind tunnel creates an outdoor environment in a controlled indoor setting which enables measurements of wind forces on a moving object to be taken while the object is stationary.
Another theory is that the holes do act as another option for lacing up those sneakers. If the shoes don't fit properly, you can easily tighten up your shoes by using these two holes.
It is called preauricular sinus which, according to the U.S. National Institutes of Health, or NIH, "generally appears as a tiny skin-lined hole or pit, often just in front of the upper ear where ...
The discovery was made as part of the Voyage to the Ridge 2022 expedition, which is exploring and mapping the “poorly understood deepwater areas of the Charlie-Gibbs Fracture Zone, Mid-Atlantic ...