Direct-to-Cell: cellphone communication through satellites
The first commercial brain implant
DART spacecraft changes an asteroid’s orbit
Non-invasive current sensor (2nd edition)
Humanoid robot for railway maintenance
Electric energy transmission in DC (HVDC)
Corona effect on electricity
Step voltage: what is it?
Charge controller: how it works?
Visit to Bom Jardim da Serra Wind Park
Fresnel linear concentrator
UPS: What is it and how does it work?
The robot show in China