Inventions

molten salt battery
Cheap molten salt battery can store energy for months 
squid skin
Squid skin inspires heat-regulating coffee cup
nimo smart glasses
Nimo smart glasses are like a PC for your eyes
lead in water
High schoolers create $1 filter to remove lead in water
Swiss scientists are making jet fuel from sunlight and air 
What is 3G and why is it being shut down? An electrical engineer explains
reduce anxiety
Hugging a cushion that “breathes” can reduce anxiety
bone cells
Sonic waves could help bones grow back after cancer 
solar desalination
MIT invents $4 solar desalination device
tooth enamel
New synthetic tooth enamel is stronger than the natural kind