Why are your hands and feet sometimes cold when your body is warm?
they are extemities, have poore circulation in many people and and the first things to get cold. when a person sufers form hypothermia the body cuts of blood suply to the legs and arms first, protecting the body core and vital organs. poor circulation don't forget to tell your doctor next time you see them
Why is water pressure higher on the first floor of high rising building than the 12th floor?
Water pressure decreases with height due to the force needed to pump water that high against gravity. As water travels up a building, the pressure decreases because of the increased distance the water needs to travel. Therefore, the water pressure is typically higher on lower floors compared to higher floors in a high-rise building.
Whats causes mold What type of air is better hot or cold?
Mold is caused by spores that are present in the air and land on damp surfaces where they can grow. Neither hot nor cold air is inherently "better" for preventing mold growth, but controlling humidity levels and proper ventilation can help to inhibit mold growth in indoor spaces.
Can the air around us be visible?
The air itself cannot be seen. It's gaseous, and is finely divided to the molecular level. And the air has a very low condensation temperature, so you won't be seeing any of it like you might see water vapor in air. Smoke, dust or other particulate matter that may happen to be taken up by the air can often be seen. The air itself, the gases that make it up, cannot.
don't worry, if anyone catches a whiff, they probably won't even smell it long enough to register smelling it. you only think it reeks because you're actively checking for that specific scent.
Space clouds, also known as nebulae, are large clouds of gas and dust in outer space. They can vary in size and shape, and are often birthplaces for new stars. Nebulae can be visible to us as faint glowing patches in the night sky.
How does water converts into clouds and clouds into rain?
Water evaporates into water vapor which condenses in the atmosphere to form clouds, when there is sufficient condensation within the clouds the water vapor start to combine into larger units until they are massive enough to fall to the ground as rain.
What is normal barometric pressure?
pressure is measured in "bar" 1bar is equal to 1000millibar. this is the atmospheres base pressure. 1020millibar is high atmospheric presure. 980 mb is low air pressure. 1.02 or 0.98 bar
Did the movie open water actually happen?
The movie "Open Water" is based on a true story of a couple who was left behind during a scuba diving trip, but it is not a completely accurate portrayal of the events that occurred. The film takes creative liberties and dramatizes certain aspects for entertainment purposes.
Air temperature difference inside the duct?
The air temperature difference inside a duct refers to the variation in temperature between the air entering the duct and the air exiting the duct. This temperature difference is influenced by factors such as the heat gained or lost through the duct walls, the efficiency of the HVAC system, and any insulation present in the ductwork. Monitoring and optimizing this temperature difference is important for ensuring effective heating or cooling of the space.
What is the effects of powerful jet to the nearby galaxy?
A powerful jet emitted by a black hole can have significant effects on a nearby galaxy. It can heat up the gas in the galaxy, disrupt star formation, trigger the formation of new stars, and even expel gas from the galaxy, influencing its evolution and morphology.
well we all know that we cant live without water. but sometimes we thougt that water is our freind but sometimes not. water cant be our enemy nor our freind. it has different water movements, tides,waves, and tsunami.
What is is the natural movement of air at any velocity?
Air, like all fluids, has no "natural movement." All its movements are determined by a wide variety of factors. One of those factors is its velocity.
Slow moving air tends to be smooth and laminar. But fast moving air tends to break up and create eddies and swirls.
There are other factors as well. For example, what surfaces is that air passing over? If the surface is a designed surface of a supersonic jet, the velocity of the air passing over that jet's surface can remain laminar. In fact it must remain laminar for the jet to fly safely at supersonic speeds.
Bottom line, there is no "natural movement." How that air flows at any given speed depends in large part on the surfaces that the air is blowing over.
When does water vaper in air condense?
Water vapor in the air condenses when the temperature of the air decreases to the point where it can no longer hold the same amount of moisture. This can happen when the air cools down, leading to the water vapor turning into liquid water droplets or ice crystals.
What weather does cumulus clouds bring?
Cumulus clouds are fluffy and white with puffy tops and indicate fair weather. They usually form on sunny days when the weather is relatively calm and stable. However, if cumulus clouds continue to grow vertically and develop into cumulonimbus clouds, they can bring thunderstorms and heavy rain.
Air bubbles are pockets of air trapped within a liquid or solid material. They can form naturally during processes like boiling or fermentation, or can be intentionally introduced for various purposes such as in aerating liquids like water or in products like bubble wrap for cushioning.
What is the chief difference between fog and a cloud?
I have been all over my library and the internet looking for this very answer. The general summary seems to be that the main difference is altitude. As the aerosol nears the ground, the water will assume the ground temperature.
What is a mountain that blows its top?
A mountain that blows its top is a volcano, which can erupt explosively, expelling lava, ash, and gases from its summit. This type of eruption can be destructive and pose risks to surrounding areas.
What causes lighting and thunder?
Actually in the atomosphere the wind will be blowing in opposite direction at the successive higher levels. So water molecules in the form of cloud would be crossing at higher speed. By this, electrification would occur and the upper cloud may lose electrons to the lower cloud. So lower one becomes negatively charged
If such oppositely charged clouds happen to come nearby then electrical discharge takes place. This forms lightining. During lightning enormous current of the even 100 A would flow. This would cause the air medium so hot and sudden expansion would produce vibrations which is heard as thunder
So electrification----->electrical discharge------->lightning-------> thunder
Clouds can help to absorb and scatter sound waves, which may result in noise being muffled or reduced. However, the effect can vary depending on factors such as the height of the clouds, their density, and the distance between the noise source and the observer.
Climbers measure air pressure at high altitudes to understand how much oxygen will be available for breathing. Lower air pressure at higher altitudes means lower oxygen levels, which can lead to altitude sickness or hypoxia. This information helps climbers prepare, stay safe, and potentially use supplemental oxygen if needed.
How does the sun affect the weather?
The sun, the closest star of the sky, is more than our source of light. It provides heat, energy and acts as the main engine driving the atmosphere on our planet. The sun generates temperature variations so that basically, every weather phenomenon available on earth can be traced to the sun.
The sun typically warms up the earth unevenly due to the earth's natural tilt at an angle of 23.5 degrees which causes the areas near the equator to be warmed up much more than the Poles. This causes the major climate differences we see between the equatorial areas typically mildly temperated and the Polar regions extremely gelid. The earth's natural tilt is also what causes weather and climate differences throughout the year known as seasons.
The sun plays a primary role in affecting weather patterns on earth, here are a few examples:
-When the sun warms up air, the area encompassing this warm air in meteorology is known as a warm front. Many weather phenomenons occur when a warm front meets a cold front.
-The sun will warm up the earth's surface and this warm air will expand and rise, as it rises, the air will then cool and descend. This up and down cycle of rising warm air and descending cool air will generate a weather phenomenon known as wind.
-The sun will warm up air over the sea near the equator and this warm air will rise creating a cloud. Cold air will then replace the warm air that has lifted and the clashes between cold and warm air will be creating spiraling turbulence known as a hurricanes.
-The sun creates warm air which then abruptly turns cold, this creates pressure and turbulence which whips up a tornado.
-The sun warms up the ocean's, lake's and soil's surfaces causing warm air to rise in the athmosphere up to a point where it will meet colder air causing it to condense and generate clouds that in turn, will produce rain, hail or snow. This is know as the water cycle which is fundamental for all living beings on earth.
In the past, people thought that the closest you could get to the sun the warmer it would be. This is actually untrue. If you climb to the top of a mountain you will likely feel a dramatic climate change. This is because as warm air rises it tends to cool, therefore, making mountain tops often cold and capped with snow.
As seen, the sun plays a primarily role on affecting the weather patterns on earth. However, recently the sun has also been perceived as a main contributing factor of global warming. HEHE
The tomb you are referring to is that of Osiris, the Egyptian god of the afterlife and the underworld. Legend has it that his tomb is hidden below the surface of the Earth near the Great Sphinx, with a sarcophagus that is submerged in water to symbolize rebirth and regeneration.