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What Russia’s war means for the International Space Station

Can the US and Russia still collaborate in space?

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The International Space Station has been orbiting above us for the last 20 years. It’s been home to astronauts from more than a dozen different countries — but mostly Americans and Russians. The two former “Space Race” countries control the main parts of the station. The science done there has required close collaboration and so it’s been largely insulated from politics on Earth.

But Russia’s invasion of Ukraine may change that. The two countries have agreed to cooperate through 2024… but after that, the future of the space station is uncertain.

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Unreal Engine 5 | Sizzle Reel

Ready for what’s next? Watch our Unreal Engine 5 sizzle reel for a glimpse at what’s now possible with real-time technology.

With Unreal Engine 5, we aim to empower both large and small teams to really push the boundaries of creativity, visually and interactively. UE5 will enable game developers and creators across industries to realize next-generation real-time 3D content and experiences with greater freedom, fidelity, and flexibility than ever before.

Want to learn more about Unreal Engine 5? Download the release for free, and explore the new features, sample projects, and learning resources: https://www.unrealengine.com/en-US/unreal-engine-5

#UnrealEngine5 #UE5 #RealTimeTechnology #3DContent #Creators #GameDevelopers

All the Biomass of Earth, in One Visualization

Our planet supports approximately 8.7 million species, of which over a quarter live in water.

But humans can have a hard time comprehending numbers this big, so it can be difficult to really appreciate the breadth of this incredible diversity of life on Earth.

In order to fully grasp this scale, we draw from research by Bar-On et al. to break down the total composition of the living world, in terms of its biomass, and where we fit into this picture.

Mark Zuckerberg is looking to develop virtual coins dubbed “Zuck bucks”

Mark Zuckerberg is looking to reduce his platforms’ dependence on advertising by introducing virtual coins referred to as “Zuck bucks” which are seemingly named after the Meta founder, chairman, and CEO reported The Guardian on Thursday. The new in-app tokens would be controlled by the company and would function in a manner similar to the Robux currency found in the popular children’s game Roblox.

Digital tokens that diversify income sources

Meta’s new digital tokens and “creator coins” will serve to diversify income sources and refresh the platform’s user base, which is constantly competing with new firms in the field such as TikTok. Some of the ideas that the company has conceived of include “social tokens” or “reputation tokens” which would work on a reward basis and “creator coins” ideal for influencers on Instagram.

Chronology protection conjecture

It has been suggested that an advanced civilization might have the technology to warp spacetime so that closed timelike curves would appear, allowing travel into the past. This paper examines this possibility in the case that the causality violations appear in a finite region of spacetime without curvature singularities. There will be a Cauchy horizon that is compactly generated and that in general contains one or more closed null geodesics which will be incomplete. One can define geometrical quantities that measure the Lorentz boost and area increase on going round these closed null geodesics. If the causality violation developed from a noncompact initial surface, the averaged weak energy condition must be violated on the Cauchy horizon. This shows that one cannot create closed timelike curves with finite lengths of cosmic string.