This past week, NASA released a series of Spectacular First Images from the Rejuvenated Hubble Space Telescope — vivid proof that the space shuttle repair mission last May was a resounding success.
From the utterly frivolous and sublimely ridiculous, to the eminently practical and utilitarian, HowCast has thousands of how-to videos. Many of them are excellent, others of at best doubtful value, but the collection as a whole is clearly a resource you can find yourself using again and again. Arranged into 25 categories (3,587 how-to videos in Careers and Education, including Job Hunting, for instance; 5,891 on Crafts and Hobbies; 474 on First Aid and Safety; 3,535 on Health and Nutrition; 9,946 on Food and Drink), there’s something for nearly every interest.
Whether or not cell phone usage causes negative health effects through the emission of radiation is an open question. The evidence for deleterious effects is limited at best. Yet many people have expressed concern about as yet undocumented possibilities. If you’re looking for a way to be prudent, minimizing your exposure while the research continues, you may be interested in this listing of more than a thousand currently available cell phones, ranked from lowest to highest emissions. The information has been gleaned from publicly available information by the Environmental Working Group, a nonprofit organization which seeks “to use the power of public information to protect public health and the environment.”
For more information on the topic, you might wish to read Lori Bongiorno’s discussion of Cell Phones and Radiation: Ten Best and Ten Worst in The Conscious Consumer blog on Yahoo.