Apparently the Perseverance Mars Rover has some self-driving capability:
With the help of special 3D glasses, rover drivers on Earth plan routes with specific stops, but increasingly allow the rover to "take the wheel" and choose how it gets to those stops. Perseverance's auto-navigation system, known as AutoNav, makes 3D maps of the terrain ahead, identifies hazards, and plans a route around any obstacles without additional direction from controllers back on Earth. [1]
The mission has used AI not just for driving the rover, but also landing and targeting instruments. [2]
>Perseverance's auto-navigation system, known as AutoNav, makes 3D maps of the terrain ahead, identifies hazards, and plans a route around any obstacles without additional direction from controllers back on Earth.
...in spite of this autonomy, Perseverence has a few major problems. It is famous for the severity of it's road rage and intolerance for human drivers, bicyclists, parked emergency vehicles, and pedestrians. Tests show a disturbing tendency toward "eliminating the human element" from it's driving environment to simplify route planning. The lengths the system will go to to achieve this were a major frustrator in early development, and initially attracting the interest of [REDACTION] for [REDACTION] due to [REDACTION] with an effective [THE REDACTION MACHINE IS BROKEN, FURTHER INQUIRIES SHOULD BE ROUTED THROUGH TOM].
Mission planners at NASA found the risk involved with deployment to the Red Planet agreeable, but note that any ongoing colonization efforts will involve having to put the system down for the safety of any eventual colonists.
That's a slightly extreme route planning optimisation, but reminded me of UPS removing left turns (in Right Hand Side driving countries like US) from their route planning to save fuel, lives, C02 emissions [1]
I'm sure you already know: Kim Kardashian will pay a fine of $1.26 million for not disclosing to her Instagram followers that she was financially compensated for promoting EthereumMax
Sounds like a nice engineering challenge but not a show stopper problem.
Also this seems like it would be more of an issue in shallow waters than it would be in open ocean. A simple pipe to deeper waters probably goes a long way to fixing things. The Pacific is pretty deep near the Californian coast and has strong currents too. The volume of water moving through that is probably many orders of magnitude larger than any brine you can dump there. So, unless I'm very wrong about this, I'd expect things to dilute pretty quickly.
You're probably already aware, there is evidence that Beethoven was not completely deaf.
According to a leading Beethoven expert, the composer still had hearing in his left ear until shortly before his death in 1827.
“Not only was Beethoven not completely deaf at the premiere of his Ninth Symphony in May 1824, he could hear, although increasingly faintly, for at least two years afterwards, probably through the last premiere that he would supervise, his String Quartet in B-flat, Op 130, in March 1826,” Albrecht said.
Sure yeah. The first part of my comment isn't dependent on Beethoven's full loss of hearing though --- loss of eyesight ending an era of music still sounds a rather hilarious statement to me :)
Just an example, I had the non-deterministic case using JAXB to generate java classes from XSD Schema files. Running an ANT jaxb task to generate the classes from the same schema files would generate different class files each time. The class files were functionally the same, however it would reorder methods, the order of the variable definitions etc. Possibly due to some internal code using a Map vs List, so order was not guaranteed. In our case the schema files were in Source Control, the Java/Class files were not, the Java/Class files were generated by the build, packaged to a jar and published to our artifact repository.
From the article: In 2005, Andrew tried to reverse-engineer the BitKeeper networking protocols in order to create a free software alternative. If it hadn't been him, it would've been someone else—it was only a matter of time. Larry McVoy had warned the Linux developers that he would pull the plug if anyone tried this, and that's exactly what he did.
Some speculation, but is there a chance that Tridgell was aware of MyVoy's condition on the use of BitKeeper as source control for the Linux Kernel and attempted the reverse-engineering deliberately to force the scenario where the development of an Open Source BitKeeper alternative was necessary?
Yes it would be nice to get a some comparison of fidelity, range etc. It mentions high-quality sound.
But it does seem more efficient than traditional speaker designs.
From the article:
They tested their thin-film loudspeaker by mounting it to a wall 30 centimeters from a microphone to measure the sound pressure level, recorded in decibels. When 25 volts of electricity were passed through the device at 1 kilohertz (a rate of 1,000 cycles per second), the speaker produced high-quality sound at conversational levels of 66 decibels. At 10 kilohertz, the sound pressure level increased to 86 decibels, about the same volume level as city traffic.
The energy-efficient device only requires about 100 milliwatts of power per square meter of speaker area. By contrast, an average home speaker might consume more than 1 watt of power to generate similar sound pressure at a comparable distance.
The article has a video of the speaker playing "We Are the Champions" by Queen. It's clearly muffled quite bit, but damn good quality for a paper thin speaker burning just 100mW.
> But it does seem more efficient than traditional speaker designs.
The numbers you have mentioned do not tell that. I have a pair of 4W speakers which can make impossible any dialogue in a 15m^2 room if working on full loudness. The secret is big but lightweight moving parts (diffusor of big square) and absence of bass.
The link may look similar or even appear identical, and still be under control of the scammer.
Similar to just not trusting incoming phone calls, you can't really trust incoming links via standard email, without some definitive way of validating the sender.
With the help of special 3D glasses, rover drivers on Earth plan routes with specific stops, but increasingly allow the rover to "take the wheel" and choose how it gets to those stops. Perseverance's auto-navigation system, known as AutoNav, makes 3D maps of the terrain ahead, identifies hazards, and plans a route around any obstacles without additional direction from controllers back on Earth. [1]
The mission has used AI not just for driving the rover, but also landing and targeting instruments. [2]
[1] https://phys.org/news/2022-04-nasa-self-driving-perseverance... [2] https://www.enterpriseai.news/2021/02/19/perseverance-rover-...