Calondra Mainhart

Calondra Mainhart

Calondra is a writer, artist, and English teacher living in Turrialba, Costa Rica.

Clay Pot Water Filters: Easy to Use and Cheap to Produce

  Potters For Peace, established in Nicaragua in 1986, is a non-profit based in the United States, that works with subsistence potters in Central America to establish factories that produce low-cost ceramic water filters. PFP does not manufacture the filters or operate the facilities where the filters are made, but instead assists their local partners to set up these facilities …

Continue reading

Low-cost baby incubator improves outcomes

Every year, 20 million babies are born prematurely, and each hour 450 die from mostly avoidable causes. Most pre-term babies are born with low-birth weights that are unsuited to regulating body temperature and thus their ability to survive depends on medical intervention. India has the highest infant mortality rate for pre-term babies in the world. Many births occur at home, or in rural health centers that don’t have facilities to care for premature infants. Even state-run hospitals might not be able to afford the life-saving equipment, which can cost up to $20,000.

Continue reading

Soylent 1.1

  Soylent has been doing exceedingly well since it’s release. The folks at Rosa Labs appear to be a little inundated with orders for the meal replacement powder, but have found time to come out with a new version that lowers the amount of sucralose and tries to solve the ‘gas’ problem some customers* were experiencing. Interestingly, given the success …

Continue reading

Under the Sea-Water Greenhouses

Saltwater is converted into freshwater in these greenhouses that provide a mermaid-approved alternative to desalination. The plants grow faster and yield more, and the areas surrounding the greenhouses benefit from the extra moisture in the air. Currently found in such areas as Tenerife, Qatar, Abu Dhabi, Oman, and Australia, the greenhouses use an evaporator and “prevailing winds” to distribute humid, freshwater air to plants for absorption.

Continue reading

The Third-Way in Roofing: Recycled Plastic Thatch

David Saiia has found a solution to both a roofing problem and the overabundance of plastic waste. Re-purposing used plastic bottles, Saiia has designed a plastic-thatch roof that keeps out the rain and heat, allows in natural light, and muffles sound. Currently the two most used roofing options for people living in the developing-world are thatch and corrugated tin. The …

Continue reading