He’s steadily been working on it for several months now, and even entered it into the 2022 Sci-Fi Contest back in April. But while the familiar hardware might have helped jump-start this build, this was no weekend project. Given the incredible amount of time and effort that has put into developing his Star Trek: Voyager tricorder, it’s no surprise that he would decide to reuse its graphics chip and microcontroller. Or at least, from a very impressive line of Star Trek props, anyway. The visually striking hardware monitor that recently put together for his new custom PC build might look like something out of the Alien franchise, but the hardware he’s built it around actually comes from a very different science-fiction property: Star Trek. Previously, the European Space Agency (ESA) was to contribute a small “fetch rover” which would collect the sample tubes dropped by Perseverance and bring them to the MAV launch site.īut in a recent press release, NASA has announced that those plans have changed significantly, thanks at least in part to the incredible success of the agency’s current Mars missions.Ĭontinue reading “Martian Successes Reshape Sample Return Plans” → Posted in Current Events, Featured, Space Tagged Curiosity, Ingenuity, mars, Mars Ascent Vehicle, Mars Sample Return, Perseverance Chief among them is how the samples are to be transferred into the MAV. Considerable progress has also been made on the Mars Ascent Vehicle (MAV) which will carry the samples from the surface and into orbit around the planet, where they will eventually be picked up by yet another vehicle which will ultimately return them to Earth.īut there’s still some large gaps in the overall plan. The Perseverance rover has been collecting samples and storing them in 15 cm (6 inch) titanium tubes since it landed on the Red Planet in February of 2021. In fact, the first phase of the program is well underway. Instead, NASA and their international partners have been working to distribute the cost and complexity of the mission among several different vehicles. But the physics of such a mission are particularly demanding - a vehicle that could land on the Martian surface, collect samples, and then launch itself back into orbit for the return to Earth would be massive and prohibitively expensive with our current technology. If plasma tweeters interest you, we’ve featured them before.įor as long as humans have been sending probes to Mars, there’s been a desire to return rock, soil, and atmosphere samples back to Earth for more detailed analysis. It sometimes needs the plasma teasing out of it through discharge to a screwdriver, but the result is a very effective and clear plasma tweeter. In this case the pentode is joined by a high-voltage TV line output transistor as a bias supply, which is in turn modulated with the audio through a small amplifier. Instead the top of the coil ends in a point, from which in the perfect speaker a ball of plasma replaces the Tesla’s impressive sparks. It can be thought of as a cousin of the Tesla coil, with the same resonant oscillator but no capacity hat. They’re a little hazardous due to the voltage but aren’t too difficult to make, as demonstrated by whose version uses a recycled power pentode tube - which is how it showed up in the Hack it Back round of the Hackaday Prize. The benefit of this design comes in its delivering the closest possible to a point audio source, in effect the theoretical ideal speaker for treble frequencies. One such is the plasma tweeter, a type of loudspeaker which generates sound by modulating a small electrical discharge. Head Basketball is an excellent 2D basketball title that boasts several different game modes (including multiplayer), very nice-looking graphics, and above all a fun and addictive gameplay.In the world of audio there are a huge variety of esoteric technologies which are rarely seen. In addition, each character has two exclusive special throws. There are some 12 different players (whom you can also customize to your liking), and they have 12 corresponding basketball courts. One of the cool things about Head Basketball is its big variety of players and settings. With the latter you can hit the ball, but normally it's more useful for trying to knock out your opponent. On the left side of the screen you've got arrow buttons to move your player around, and on the right your jump and hit buttons. In fact it's practically identical, but with the goals replaced with baskets. The game is developed by the people who made Head Soccer, and thus shares lots of similarities with that legendary title. Head Basketball is a 2D basketball game where you can participate in one-on-one duels where absolutely anything goes.
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