- The polymer is made from an organic compound called porphyrin, and it’s kind of a sponge with little pores that attract metal atoms.
- When electronic junk is treated with acid, a porphyrin polymer collects metals, and it seems that gold is it’s favorite metal.
- Researchers tested this method with several circuit boards from a junkyard.
- It resulted in a solid gold nugget that accounted for 94% of the gold from the circuit boards.
- With $5 production cost per gram of the polymer, and $64 gold yield per gram, this method might revolutionise the way we recycle electronics.
- Unknown source is emitting repeatable Fast Radio Bursts (FRB) 500,000 light years from Earth.
- Over 100 FRBs have been observed before, but never repeatable and never in a specific pattern.
- The pattern is 4 days of noise and 12 days of silence, it’s been repeating itself consistently over 500 days.
- Experts say that it’s a new phenomenon in astrophysics.
- It could be a neutron star or a magnetar, which is a less understood type of neutron star with an extremely powerful magnetic field.
- By analyzing 46 metabolites (produced by digesting food) in the pee of 1,848 people, researchers found an easy way to test what we’re eating in 5 minutes.
- They found connections between metabolites, foods and health conditions, and defined patterns that describe healthy and unhealthy diets.
- Another team of researchers used this data to create a quick urine test that could help health professionals make precise, individually tailored diet plans.
- The main conclusion is that our bodies process and use food differently at the molecular level, one diet will never work the same for two different people.
- Researchers created a photosynthesis model based on complex networks (cellphone, brains, power grids).
- Based on this model, they found that photosynthetic organisms protect themselves from sudden increases in solar energy by absorbing only specific colors of light.
- Absorbing only parts of the solar spectrum allows them to minimize noise in the output (=generated energy) of their solar cell system.
- It’s simple physics, it allows these organisms to protect themselves, conserve energy, and - most excitingly - it is consistent with a lot of biological observations.
- This is the first qualitative proof that photosynthetic beings (like plants) have colors (say, green) in order to protect themselves from absorbing too much energy.
- Desalination is viewed as a solution to the water shortages that, according to many experts, will start happening globally within 10 years.
- But it seemed too expensive, until recent development of a new method - temperature swing solvent extraction (TSSE).
- TSSE is done without boiling water, and uses a low-polarity solvent at low temperatures to turn salt into solid crystals that are easy to remove.
- Heated up to 70 °C, the solvent releases water as if from a sponge, with more than 90% of the initial salt content removed.
- Further testing and optimization of the method will follow, possibly resulting in a very cost-effective, easily scalable way to desalinate water.