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DNA as Cold Storage for the Digital Age
Synthetic DNA can store data at extraordinary density for long periods, but writing, reading, cost and error correction keep it in the archive laboratory for now.
Perovskite Solar Cells Make Their Leap
The humble silicon solar panel, a fixture of renewable energy, might soon face a formidable challenger. Perovskite solar cells are emerging from the lab, promising a revolution in efficiency and application.
Photonic Chips: When Light Carries Logic
Photonic chips move information with light to cut delay and energy in selected tasks, especially communications and parts of AI acceleration.
Why Analog Hardware Still Matters in Climate Modeling
Analog and neuromorphic chips do not replace global climate models, but they can solve selected physical equations with low energy when digital machines are costly.
Why Engineers Tried Putting Data Centers Underwater
Underwater data centers test a simple bargain: sealed servers can use cold seawater for heat exchange, but repairs, permits and ecology set hard limits.
What open source learned from the bazaar
Eric S. Raymond’s 1997 essay used Linux and fetchmail to explain why open development can find bugs quickly. Its lesson still needs maintainers, trust and governance.
Inside the social-media black box
Recommendation systems rank posts through signals, prediction models, product rules and safety filters. Understanding the black box means testing objectives, data access and limits — not treating AI as magic.
Edge AI without the cloud: what should run on the device
Edge AI moves some machine-learning decisions from distant servers onto phones, cameras, sensors and industrial devices. The benefit is speed and privacy; the limit is power, memory, updates and accountability.