An anonymous reader writes: NASA’s Perseverence rover, which is currently exploring Mars, has as it’s CPU a BAE Systems RAD 750 running at a 200 Mhz and featuring 256 Megabytes of RAM with 2 Gigabytes of storage. This is a radiation hardened version of the PowerPC G3, with specs roughly equivalent to the Clamshell Ibook that Reese Witherspoon used in Legally Blond back in 2001. This follows a tradition of old tech on space rovers — the Sojourner rover which explored Mars in 1997 used an Intel 80C85 running at 2 Mhz, similar to what could have been found in the classic Radio Shack TRS-80 model 100 portable from 1983.

In a comment on the original submission, long-time Slashdot reader Mal-2 argues “There’s not as much distance between the actual capabilities of a CPU now and twenty years ago as there would be if you made the same comparison a decade ago.”

In the last 12 years or so, the CPUs have gotten more efficient and cooler-running (thus suitable for portable devices) to a much greater degree than they’ve actually gained new functionality. Retro computing is either going to stay stuck in the 1990s, or it’s not going to be very interesting in the future.

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Source: Slashdot – The Perseverance Rover CPU Has Similar Specs To a Clamshell Ibook From 2001

“The huge parachute used by NASA’s Perseverance rover to land on Mars contained a secret message,” reports the Associated Press — thanks to the rover’s puzzle-loving systems engineer Ian Clark.

“During a live stream discussing the landing, one Nasa commentator said: ‘Sometimes we leave messages in our work for others to find. So we invite you all to give it a shot and show your work,'” reports the Guardian.

One Reddit user actually deciphered the message using Python code.

Long-time Slashdot reader rufey writes that “Decoded the slogan is ‘Dare Mighty Things’ — a line from President Theodore Roosevelt — which is a mantra at JPL and adorns many of the center’s walls.” The orange sections of the 70-foot (21-meter) parachute represented ones in binary code, while the yellow sections represented zeroes. (So the letter “A” becomes yellow-yellow-yellow-yellow-yellow-yellow-orange…) The Associated Press reports:

Clark also included the GPS coordinates for the mission’s headquarters at the Jet Propulsion Laboratory in Pasadena, California. Clark, a crossword hobbyist, came up with the idea two years ago. Engineers wanted an unusual pattern in the nylon fabric to know how the parachute was oriented during descent. Turning it into a secret message was “super fun,” he said Tuesday. Only about six people knew about the encoded message before Thursday’s landing, according to Clark. They waited until the parachute images came back before putting out a teaser during a televised news conference Monday…

Another added touch not widely known until touchdown: Perseverance bears a plaque depicting all five of NASA’s Mars rovers in increasing size over the years — similar to the family car decals seen on Earth.
Deputy project manager Matt Wallace promises more so-called hidden Easter eggs…

The official Twitter feed for the rover has already revealed that it’s carrying another message hidden in a plaque with a logo of the sun — “Explore as One,” written in Morse code.
Some other interesting facts about the rover:

NASA points out that Perseverance carried a special placard with 10,932,295 names, “stenciled by electron beam onto three fingernail-sized silicon chips.”
Space.com notes that it also carried a small aluminum plate honoring the healthcare workers of the world.
NASA is encouraging children to code their own version of the helicopter using the visual programming language Scratch.

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Source: Slashdot – The Mars Perseverance Rover’s Parachute Contained a Secret Message

ZDNet reports:

Scientists from quantum computing company D-Wave have demonstrated that, using a method called quantum annealing, they could simulate some materials up to three million times faster than it would take with corresponding classical methods.

Together with researchers from Google, the scientists set out to measure the speed of simulation in one of D-Wave’s quantum annealing processors, and found that performance increased with both simulation size and problem difficulty, to reach a million-fold speedup over what could be achieved with a classical CPU… The calculation that D-Wave and Google’s teams tackled is a real-world problem; in fact, it has already been resolved by the 2016 winners of the Nobel Prize in Physics, Vadim Berezinskii, J. Michael Kosterlitz and David Thouless, who studied the behavior of so-called “exotic magnetism”, which occurs in quantum magnetic systems….

Instead of proving quantum supremacy, which happens when a quantum computer runs a calculation that is impossible to resolve with classical means, D-Wave’s latest research demonstrates that the company’s quantum annealing processors can lead to a computational performance advantage… “What we see is a huge benefit in absolute terms,” said Andrew King, director of performance research at D-Wave. “This simulation is a real problem that scientists have already attacked using the algorithms we compared against, marking a significant milestone and an important foundation for future development. This wouldn’t have been possible today without D-Wave’s lower noise processor.”
Equally as significant as the performance milestone, said D-Wave’s team, is the fact that the quantum annealing processors were used to run a practical application, instead of a proof-of-concept or an engineered, synthetic problem with little real-world relevance. Until now, quantum methods have mostly been leveraged to prove that the technology has the potential to solve practical problems, and is yet to make tangible marks in the real world.

Looking ahead to the future, long-time Slashdot reader schwit1 asks, “Is this is bad news for encryption that depends on brute-force calculations being prohibitively difficult?”

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Source: Slashdot – Quantum Computer Solves Decades-Old Problem Three Million Times Faster Than a Classical Computer

Results were announced this week for the fourth “official annual Python Developers Survey” of over 28,000 developers (in nearly 200 countries) conducted by the Python Software Foundation and JetBrains.

85% of the survey respondents use Python as their main programming language, InfoWorld reports:

Python developers cite simplicity and ease of use as principal reasons for using the language, but they still want capabilities such as static typing and performance improvements, based on survey results released this week. Python’s simple syntax, syntactic sugar, and ease of learning were the most-favored features, capturing 37% of respondents, who were asked which three features they liked the most…

Which three features would Python developers most like to see added to the language? Static typing and strict type hinting proved to be the most-desired features, with 21% of respondents, closely followed by performance improvements, with 20%. Better concurrency and parallelism came in third, with 15% saying they were their most-desired capabilities.

InfoWorld also describes some other interesting results:

“JavaScript was the most popular language used in conjunction with Python, with about 42% of respondents using both together. 75% of web developers said they were using both Python and JavaScript.”
“Just 8% of Python developers performing data-related tasks do not use any additional languages while only 3% of web developers use only Python.”
“Use of Python 3 has grown from 75% in 2017 to 94% in 2020.”

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Source: Slashdot – Do Python Developers Want Static Typing?