Brazilian favela-dwellers without reliable electricity have an alternative means of supplying light to enclosed spaces that have no/insufficient windows (either because they are abutted on all sides by other buildings, or because the walls are made of materials that make it impractical to add windows). They suspend 2l soda bottles filled with a water/bleach solution from the ceiling, with the open tops poking out into the daylight. Sunlight refracts off the water in the bottle and turns it into a "lightbulb" that has been measured as supplying illumination comparable to a 50w incandescent bulb.
This handheld magnifying glass has two bright LEDs and is powered by 3 AAA cells (not included). The manufacturer says the magnification is 40X. I think it is less than that, but it is still plenty powerful for my needs – mainly, reading the markings on tiny electrical components and checking the layer fusion on […]
The curved bottom of the cup peeks through your drink as the level drops down, moving the “moon” from full to a fingernail-paring sliver. Of course, it works better if you drink something cloudy and white — it’s designed some cloudy Korean rice-wines, but would also work with Pernod and water, I’m thinking.
Power up your gadgets in the most unexpected places with the extremely compact SolarJuice battery pack. SolarJuice charges up at home like your average battery pack, but also lets you add extra juice on-the-go using its built-in solar panel—so you’ll never be left unplugged from the digital world.4.5 Stars on Amazon!Simultaneously charges 2 devices at […]
Hold your camera to higher standards with the brand-new iBlazr 2, the most advanced LED flash to date. Simply attach to your smartphone, tablet, or DSLR camera. Conveniently sized and wireless, this premium flash will let you easily take amazing photos in low light situations. It’s a literal snap to use: simply attach to your […]
Moment of truth: Is “Microsoft Office Expert” on your resume, but not totally accurate? This pay what you want bundle will not only help you brush up on old skills, but teach you advanced techniques that will impress your current and future boss. From intricate Excel formulas to Outlook organization hacks, you’ll not only boost […]