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Comment Diverse double-compiling (Score 1) 125

Do you have the code for the compiler, and compile that yourself too?

If you have three different compilers for a language, and you bootstrap a compiler using all three of them, the first generation (e.g. GCC compiled with QuestionableCC, ShadyCC, or SlopCC) should be functionally identical, and the second generation (GCC compiled with GCC, which was compiled with the other compiler) should be bit-identical. See "Fully Countering Trusting Trust through Diverse Double-Compiling" by David A. Wheeler. Some people have trouble trusting Rust because only the latest stable rustc can compile the latest stable rustc.

Submission + - Why Trump May Not Serve Out His Presidency (newrepublic.com)

Submitted by Anonymous Coward
An anonymous reader writes: In 2024, a group of 225 mental health professionals said in a published open letter (bankrolled, granted, by an anti-Trump PAC created by George Conway) that Trump suffered from “malignant narcissism” and appeared “to be showing signs of cognitive decline,” including “a dramatic decline in verbal fluency, tangential thinking, diminished vocabulary, overuse of superlatives and filler words,” and to be “exhibiting deteriorating judgment, impulse control, and motor functioning (including a wide-based gait).”

Submission + - New tin-based solar cells trap heat 1,000 times longer, could beat 33% limit. (interestingengineering.com)

Submitted by fahrbot-bot
fahrbot-bot writes: Interesting Engineering is reporting that researchers at the University of Groningen in the Netherlands found that tin-based perovskite solar cells can slow heat loss from high-energy “hot electrons” by a factor of 1,000 and could push solar cell efficiency beyond the theoretical 33 percent limit.

When sunlight strikes a panel, photons jump-start electrons into action. The most energetic photons create super-charged hot electrons. Theoretically, these high-voltage powerhouses should generate far more electricity, but, in practice, they are fleeting. In fractions of a trillionth of a second, these high-energy particles rapidly cool, dumping their bonus energy as waste heat before ever leaving the solar cell.

“This means that the energy is lost before the hot electron exits the solar cell material,” said Jan Anton Koster, Professor of Physics of Novel Semiconductors and Devices at the University of Groningen.

Using a specialized solar cell material called tin-based perovskite, Loi’s lab performed a feat many thought impossible: she slowed the heat loss down by a factor of 1,000. Suddenly, the extra energy lingered for nanoseconds instead of vanishing in picoseconds.

The study findings were published in the journal ACS Energy Letters.

Comment Re: Jacob Coxon is a nobody (Score 1) 104

Jacob Coxon is the equivalent of a Walmart cashier this industry

Once again showing that you don't understand the industry, despite your earlier claim to be working in the field. You are a liar. You have been weighed, measured and found wanting.

You are liar who lies, who writes lies, and will lie until you die. What a pity, you lying liar.

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