guildfordcycads

The International Space Station is overly sterile; making it ‘dirtier’ could improve astronaut health

The International Space Station is overly sterile; making it 'dirtier' could improve astronaut health

Astronauts often experience immune dysfunction, skin rashes, and other inflammatory conditions while traveling in space. A new study suggests that these issues could be due to the excessively sterile nature of spacecraft. The study showed that the International Space Station (ISS) has a much lower diversity of microbes compared to human-built environments on Earth, and the microbes that are present are mostly species carried by humans onto the ISS, suggesting that the presence of more microbes from nature could help improve human health in the space station.

Read More »

Koalas’ Catch-22

Koalas' Catch-22

New research highlights the unique dilemma faced by Sydney’s koala population. Populations in south-western Sydney are among the very few in New South Wales still free of chlamydia, a highly contagious disease causing infertility that has severely diminished populations elsewhere in the continent’s eastern states. However, analysis of these koalas shows how vulnerable they are to environmental threats and outbreaks of disease. Highly inbred and with low genetic diversity, they are less likely to adapt to the disease should it arrive on their doorstep.

Read More »

Help me brainstorm a hypothetical soil-mixing conundrum

Help me brainstorm a hypothetical soil-mixing conundrum

Let’s say I had a pickup truck of topsoil, one of horse manure, one of shredded leaves/mold, one of mostly finished compost, and another of peat moss.

How would you go about blending this together in a somewhat reasonably even mixture? (doesn’t need to be perfectly homogeneous)

Would this be something you’d need a powered rotating trommel for?

I’ve blended a pretty big pile of compost with other amendments by putting it all on a tarp and pulling up the sides to tip it over to toss it about. It worked okay, but I’m thinking about how to do this on a much larger scale, with plenty of place to maneuver.

submitted by /u/xmashatstand
[link] [comments]

Help me brainstorm a hypothetical soil-mixing conundrum Read More »