how many teeth do a shark have
So 19 teeth a week = 988 teeth a year x 30 years = 29,6...
Thermosphere. Troposphere. In which layer do auroras (e.g. northern lights) occur? Exosphere.
The situation in the troposphere is defined as unstable because the reaction of the natural atmospheric phenomenon like climate, temperature, humidity, rainfall etc. are not realists predictable and stable. And all weather and atmospheric activities (thunder, storm, rainfall, clouds formation etc.)
It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit). However, despite the high temperatures, the pressure is very low, so satellites don’t suffer heat damage.
Scientists do this by studying the electromagnetic radiation received from the planets, and certain wavelength emissions are good indicators of the presence of auroras. Each of the gas giants (Jupiter, Saturn, Uranus, and Neptune) has a strong magnetic field, a dense atmosphere and, as a result, its own aurora.
the auroras in the polar regions of jupiter and saturn are cause by charged particles spiraling in the magnetic fields of these two planets, reaching the polar regions where the fields plunge into the atmosphere, and crashing into atoms and molecules in the atmosphere. … when they de-excite, they emit the auroral light.
The jovian planets get their heat from the Sun and from their interiors. Jupiter creates a lot of internal heat and releases this heat by emitting thermal radiation. In fact, Jupiter creates so much internal heat that it emits almost twice as much energy as it receives from the Sun.
The sounds of the auroras
People have described the sound of the northern lights as a quiet and almost imperceptible crackling, whooshing or whizzing noise.
Unlike Yellowknife is clear skies throughout the year and more chance of seeing the auroras (240 days a year). … The color of the aurora depends on the wavelength of the light emitted. Thus, the human eye primarily views the Northern Lights in faint colors and shades of gray and white.
The Northern Lights are most commonly spotted in the northernmost points of the world: Alaska, northern Canada, Greenland, Norway, Sweden, Finland and Iceland. If you’re flying near any of these destinations, there’s a chance that you’ll catch the aurora borealis in action during your flight.
Auroras are caused by the interactions of the particles ejected from the Sun and the earth’s magnetosphere. … constant stream of particles flowing from the Sun is known as the solar wind.
An area of the atmosphere containing positively charged particles called ions (Aruora Borealis or Northern Lights)and found in the upper mesosphere and lower thermosphere.
the collisions between gaseous particles in the earth’s atmosphere and electrically charged particles realeased from the sun’s atmosphere. what are the Northern lights called in the North? Aurora Borealis.
“Active periods are typically about 30 minutes long, and occur every two hours, if the activity is high. The aurora is a sporadic phenomenon, occurring randomly for short periods or perhaps not at all.”