The Saffir-Simpson Hurricane Wind Scale How are hurricanes named? How to prepare for a hurricane How to storm-proof your home List of emergency supplies Hurricane season in the Atlantic brings a host of dramatic and dangerous weather, from whipping winds, torrential downpours, power outage...
If ramjets are so fiddly, then why bother? Well, at the pressures and temperatures generated at Mach 2.5+, most jet engines become hugely impractical -- and utterly pointless. Even if you could make one work, doing so would combine the hazards of running a windmill in a hurricane with th...
From swaying, unstable breezes to hurricane-force blasts, Mother Earth's wind is a notoriously fickle condition, and thus, pretty much worthless for aerodynamics testing. Wind tunnels, on the other hand, provide a controlled environment for this kind of testing. Wind tunnels are simply hollow tub...
“We accomplished this with a leased line dedicated to our use, one that we used to connect the datacenter with our Microsoft facility in London.” The extraction also had to be timed just right for the same reasons. “The seas in Orkney throw up waves that can b...
The vice president spoke extensively about her late mother, who died in 2009, and the lessons she learned from her. She described her mom as a “brilliant five-foot tall brown woman with an accent” and a “tough, courageous” person who dreamed of curing breast cancer. “I ...
country — extreme weather, heat waves, deeper and longer droughts, crop failures, strengthening wildfires, sea level rise — and they are disproportionately borne by the most vulnerable among us,” former Vice President Al Gore, a leading voice in the fight against climate change,said in a ...
In a natural disaster — a hurricane, flood, volcanic eruption, or other catastrophes (灾难) — minutes and even seconds of warning can make the difference between life and death. Because of this, scientists are working to use the latest technological advances to predict when and where disasters...
water is called the surf.Most waves are caused by wind blowing across the ocean's surface.The size of a wave depends on how fast and how far the wind blows over the surface and on the depth of the wave.Small winds can cause ripples,while strong winds create large hurric...
Hurricanes(飓风) are storms. They can cause terrible waves, wind and rain. They happen in the Atlantic Ocean and the Pacific Ocean most of the time. Category(类别) ·Scientists divide(划分) them into five categories according to the wind speed. ·A Category 5 hurricane can destroy(摧毁) al...
A final note about tethering: it only works if the cell towers you access have power. That’s normally not a problem, but if the outage is caused by severe weather (for example, a hurricane or blizzard), the towers’ generators could run out of fuel. Until they are replenished, those...