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.
If you want to add some real firepower to your programming repertoire, learn Java–one of the most adaptable, widely-used programming platforms around. You can easily do that with this Ultimate Java bundle, now just $69 in the Boing Boing Store.Across 14 lectures and 117 hours of content, the educators at online academy eduCBA will walk you through […]
Every company wants to harness the power of social media, but few understand how to make that happen. Be one of those select few with this Social Media Marketing Course & Certification package, now just $29 in the Boing Boing Store.Over 12 modules of course material, you’ll learn what it takes to increase a brand’s […]
If you’ve got a killer app idea, but don’t have the technical expertise to pull it off, get a crash course in all things app development with the Comprehensive Android Development Bundle, now over 90% off in the Boing Boing Store. Across 83 hours of training, you’ll learn to develop for the world’s most popular mobile OS, mastering […]