5. Examine your teeth for the signs of bleeding (bleed)。 If you notice any, let your dentist know as soon as possible. 6. Graffiti (涂鸦) is often considered illegal because it is done without the permission (permit) of the building owners。 7。 Forecasters say the stron...
Truly this water which surrounded me was but another air heavier than the Earth’s atmosphere, but almost as clear. Twenty Thousand Leagues Under The Sea Above me was the calm surface of the sea. We were walking on fine, even sand, not wrinkled, as on a flat shore, whi...
Scientists have even observed dust devils on Mars and spotted solar tornadoes whipping out from the sun. In a tornado, the same sort of thing happens as with our bathtub example, except with air instead of water. Low-pressure centers — which draw in cooler, high-pressure air from the ...
What conditions make for a weak volcanic eruption? Can tornadoes cause fires? What is the longest tornado ever recorded? Where do tornadoes form in a supercell? What happens when a tornado meets a volcano? What causes low level wind shear? What are the pressure conditions of the air above ...
What causes major temperature inversions in the atmosphere? What determines the direction of respiratory gas movement? What are the causes and effects of cyclones? What affects air currents and ocean currents? How does convection affect air currents? What causes currents? What happens to air as it...
A lightning bolt is a discharge of electricity in the atmosphere. The strike equalizes the positive and negative charges in the air. It usually happens within clouds, but it can occur between the clouds and the ground. Why does thunder come after lightning?
A lightning bolt is a discharge of electricity in the atmosphere. The strike equalizes the positive and negative charges in the air. It usually happens within clouds, but it can occur between the clouds and the ground. Why does thunder come after lightning?
A lightning bolt is a discharge of electricity in the atmosphere. The strike equalizes the positive and negative charges in the air. It usually happens within clouds, but it can occur between the clouds and the ground. Why does thunder come after lightning?
Every day, a very small amount of water is lost high in the atmosphere, where intense ultraviolet rays can break a water molecule apart, but new water is also emitted from the inner part of the Earth, by volcanic activity. The amount of water that is created and the amount that is ...
What happens to all the data you collect while storm-chasing? It would be nice to have immediate eureka moments, but the results take time. After we collect the data, we spend years analyzing it. Combining data from all the instruments to get a ...