Word: vacuums
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...government's reliance on forces of the old enemy is unlikely to endear it to the Somali citizenry. Although Ethiopia promises to withdraw its forces within days, they had been active in Somalia for months before their presence was officially acknowledged, and a speedy withdrawal would leave a vacuum that the Islamists would once again fill. Yet having effectively repelled an Islamist advance on Baidoa, the Ethiopians risk losing much of their tactical advantage if they tried to capture Islamist strongholds, particularly the capital. Their goal, instead, according to Ethiopia's Prime Minister Meles Zenawi, is to weaken the Islamists...
...disengagement. On the other hand, the report confronts the failure of the Bush administration’s current policy head-on. But it is imperative that both parties realize the salience of the report and the truth in its reasoning. An immediate withdrawal will result in a power vacuum in Iraq and would open the door to escalated sectarian violence and Saudi military support of Sunni insurgents...
...cleaning fanatics, a vacuum can mean only one thing: Dyson. Since the company's inception in 1993, James Dyson has strived to create innovative machines superior to anything else on the market. Now comes his latest invention, the Root 6, above, a handheld vacuum that won't lose suction, never clogs and has a lithiumion battery. And with its space-age good looks, it's nice enough to leave lying around the house...
...does it work? Air conditioning relies on some form of heat exchange. In this case, it's a thermochemical one between water and salt that takes place in a vacuum. Water evaporating from a tank inside ClimateWell's refrigerator-size unit is absorbed by salt housed in a connected tank the water molecules can't resist sticking to the salt, turning it into a slurry. As water evaporates, it gives up energy, which is then released inside the salt tank. The result of the energy transfer: the water becomes colder as the salt heats up. Pipe water through the slurry...
...bottom line is that risk doesn't exist in a vacuum and that there are a host of factors that come into play, including the rewards of risk, whether they are financial, physical or emotional. It is this very human context in which risk exists that is key, says Adams, who titled one of his recent blogs: "What kills you matters - not numbers." Our reactions to risk very much depend on the degree to which it is voluntary (scuba diving), unavoidable (public transit) or imposed (air quality), the degree to which we feel we are in control (driving...