Learn about the EU’s plan to shift to a circular economic model to make Europe cleaner and more competitive. Subscribe to this topic See all explainers on this topic The Earth’s resources are limited.

Abstract: For any linear and time-invariant system, its output is the linear convolution between the variable input sequence and the constant system impulse response. When the input is long and the ...

Extreme heat in Japan and Australia. Flash floods in Texas and across Europe. Billion-dollar-damaging storms in the Caribbean and Southeast Asia. Weslynne Ashton is a professor of environmental ...

Our research proves a conjecture from string theory asserting the vanishing of a specific convolution sum arising in the 4-graviton scattering amplitude in 10-dimensional type IIB string theory. The ...

The AI boom has triggered a historic spending spree. By 2028, investment in chips, servers and data centers could reach nearly $3 trillion, according to Morgan Stanley. On this episode of Bold Names, ...

Skeptics of a recent investment spree involving OpenAI and others say deals raise questions about the robustness of the artificial intelligence boom. By Andrew Ross Sorkin Bernhard Warner Sarah ...

We’re watching a new trend in semiconductor stocks concerning circular deals. Here’s why we think investors should be keeping an eye on it, though they shouldn’t be particularly worried at this point.

King's College London provides funding as a member of The Conversation UK. We extract more than 100 billion tonnes of raw materials from Earth each year, then throw most of them away. The “circular ...

We often like to think of life—and of progress—as a straightforward path, but we know there’s peaks and valleys or times when we take one step forward and two steps back. That’s why Dick Flynt, senior ...

The nature of different antenna polarizations. Circular polarization and its properties. Where to apply linear and circular polarizations. How to measure and analyze circular polarization. When using ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...