3D Printer Creates Microbatteries Smaller than a Grain of Sand
Researchers at Harvard and the University of Chicago used "electrochemically active ink" and a custom 3D printer to print microbatteries smaller than a single grain of sand.
Researchers at Harvard and the University of Chicago used "electrochemically active ink" and a custom 3D printer to print microbatteries smaller than a single grain of sand. They reported their breakthrough in the journal Advanced Materials.
So why might we need such small batteries? To power microdevices such as medical implants or insect-like flying robots.
Watch here to see the printing of these batteries in action:
Image and video courtesy of Lewis Research Group, Harvard University
How do we combat the roots of these hateful forces?
- American Psychological Association sees a dubious and weak link between mental illness and mass shootings.
- Center for the study of Hate and Extremism has found preliminary evidence that political discourse is tied to hate crimes.
- Access to guns and violent history is still the number one statistically significant figure that predicts gun violence.
Some games are just for fun, others are for thought provoking statements on life, the universe, and everything.
- Video games are often dismissed as fun distractions, but some of them dive into deep issues.
- Through their interactive play elements, these games approach big issues intelligently and leave you both entertained and enlightened.
- These five games are certainly not the only games that cover these topics or do so well, but are a great starting point for somebody who wants to play something thought provoking.
The Amazon Rainforest is often called "the planet's lungs."
- For weeks, fires have been burning in the Amazon rainforest in Brazil, likely started by farmers and ranchers.
- Brazil's president, Jair Bolsonaro, has blamed NGOs for starting the flames, offering no evidence to support the claim.
- There are small steps you can take to help curb deforestation in the Amazon rainforest, which produces about 20 percent of the world's oxygen.