Yes, we have it! The picture we all were waiting for. Powehi, the Black Hole, saying cheese! If you have watched the movie Interstellar, you can see similarities between the actual image and the one shown in the movie. Christopher Nolan put up a beautiful picture in our minds but the credit goes to Sir Albert Einstein. Sir Albert Einstein’s general relativity theory spoke about the presence of black holes.
SpaceX has successfully launched its first-ever triple rocket landing during the Falcon Heavy flight mission for an advanced communications satellite into orbit for Arabsat. Launch itself has created significant buzz by recovering the rocket’s three Falcon 9 core stages. The Falcon Heavy currently holds 27 engines, which are distributed among three Falcon 9 core stages. The entire assembly was mounted on historic pad 39A at the Kennedy Space Center.
With a mission to build another robot for Mars, Husky Robotics, the student-run organization of University of Washington, have crafted yet another Mars rover. Building on their previous model, Orpheus, the team is ready to take up the University Rover Challenge this year with their upgraded rover design.
PCB etching is a process of removal of unwanted copper (Cu) from the circuit board. When I say unwanted, it is nothing but the non-circuit copper that is removed from the board. As a result, the desired circuit pattern is achieved.
Measuring ultra-low impedances (20 micro-ohm) is a challenge for any power distribution network (PDN) design engineer. The 2-port shunt-through measurement is the standard method for measuring milliohm impedances up to very high frequencies (GHz). Unfortunately, this measurement includes an undesirable ground loop related to the instrument grounds and test setup cabling. The ground loop introduces significant errors if proper care is not taken. This application note shows how to measure as low as 20 μΩ using the Picotest J2102A as a ground loop breaker.
As simple as it is, a prepreg is nothing but an insulation layer. Prepreg is a dielectric material that is sandwiched between two cores or between a core and a copper foil in a PCB, to provide the required insulation. You can call it as a binding material as well. It either binds two cores or a core and a copper foil.