When the wind blows across the water, it changes the water's surface, first into ripples and then into waves. Once the surface becomes uneven, the wind has an ever increasing grip on it. Storms can make enormous waves, particularly if the wind, blows in the same direction for any length of time. In this chapter, you can learn what waves are and how they behave. Learn to understand the principles ... read more >>
Iowa officials should fully investigate whether a broken floodgate on the Lake Delhi dam contributed to the northeast Iowa dam's failure last weekend, national experts said Wednesday.
"That's a huge question mark," said Brad Iarossi, an engineer who speaks about dam safety for the American Society of Civil Engineers.
A properly working dam should have been capable of handling the 13-inch do ... read more >>
Diverting the Mississippi River could protect Louisiana's coasts against some of the Gulf of Mexico oil spill, scientists say.
By shifting some of the Mississippi's flow from its southernmost branch, the Atchafalaya River, to the Mississippi's main river body could create a strong current of fresh water that would act as a barrier against the oil. (Read how nature is fighting the Gulf oil spil ... read more >>
Could another deep water- or even shallow water- oil drilling disaster be looming ahead? Experts warn it certainly could happen again.
The Deepwater Horizon catastrophe, they say, highlights flaws in the drilling industry's main defense against oil and gas explosions -- the blowout preventer, which is supposed to shut down an oil and gas well if something goes wrong. Oil companies have treated ... read more >>
As oil continues to gush from a broken well into the Gulf of Mexico, officials and scientists are worrying that the environmental disaster could be compounded later this year by a natural one.
The hurricane season starts Tuesday and runs through November, and forecasters expect one of the most turbulent seasons ever. If a hurricane rolled over the spill, the winds and storm surges could dispe ... read more >>
Here is a good collection of fluid mechanics videos. ... read more >>
Louisiana state officials and the Army Corps of Engineers are considering increasing the flow of water from the Mississippi River to help keep the Gulf of Mexico oil spill from reaching land.
Currents from the USA's longest river are believed to have already played a role in pushing the oil away from shore since an exploration rig exploded off the Louisiana coast two weeks ago, says Garret Gr ... read more >>
This video demonstrates how BP plan to use a "cofferdam" to stem the flow of oil from the Deepwater Horizon crisis ... read more >>
In nature, or in your kitchen freezer, water expands when it freezes. It gets about 9% bigger. This video gives you a dramatic demonstration of what happens when water freezes in a closed container: ... read more >>