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Atmospheric injection of volcanic ash during eruptions is a threat to aviation. Reliable forecast of airborne ash dispersal relies on empirical and numerical models. Key inputs into these models are so-called eruption source parameters such as the rate a
rocket will be observed as a change in the time delay between the ground reference timing pulses and the pulses received from the rocket. An accurate measurement of the delay can be translated to an accurate measurement of the range of the rocket by the conventional equation involving the ...
“Active Debris Removal by Astroscale-Japan”) satellite has been partaking in JAXA’s Commercial Removal of Space Debris Demonstration (CRD2). After ADRAS-J was launched by a Rocket Lab Electron rocket on February 18, it’s been moving closer to its target, with June 14th seeing an ...
“It’s like being strapped to the front of a rocket,” says Russ Tedrake, vice president of robotics research at the Toyota Research Institute, says of the field’s pace right now. Tedrake says he has seen plenty of hype cycles rise and fall, but none like this one. “I’ve ...
There is currently a debate on whether they are correlated, since both Bitcoin and the S&P 500 index have rocketed up at the same time. However, we assume the common financial narrative at the moment that bitcoin can not be seen as a short-term hedge against collapses in the equity ...
The experimental results were obtained by measurement of relevant voltages across the tower insulators for 10 lightning events, i.e., for lightning currents (natural or rocket-triggered) striking a rod installed on the top of the observed tower of the line under test. The simulated results ...
For decades, traditional methods of orbit insertion have utilized a chemical propulsion system, which is governed by the rocket equation, dictating that large amounts of propellant mass are needed to enact changes of velocity on a spacecraft. For any system, but especially a SmallSat. which is...
by throwing every bit of it as fast as possible, then you not only need less it to move your spacecraft, you need less propellant to move less propellant. The gain in efficiency isexponentialas therocket equationmakes explicit; the ratio of the spacecraft-and-fuel’s initial to final mass...