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I’m mind-blown 🤯 by the Safari 16.4 beta release: https://webkit.org/blog/13878/web-push-for-web-apps-on-ios-and-ipados/. Some highlights:
🛎️ Web Push for apps added to the Home Screen
📲 Ability for other browsers to add apps to the Home Screen
🔴 Badging API
💤 Screen Wake Lock API
🔃 Screen Orientation API
🙋 User Activation API
🎥 WebCodecs API
📄 Manifest ID
Full release notes with all details: https://developer.apple.com/documentation/safari-release-notes/safari-16_4-release-notes. 🎉
I showed my students this movie of how atmospheric #CarbonDioxide (CO₂) travels around the globe and you should see it too.
Narrated video - Jan. 1, 2006 - Dec. 31, 2006For complete transcript, click here. Visualization - Jan. 1, 2006 - Dec. 31, 2006 North America - Feb. 1 - 28, 2006 Africa - Aug. 1 - 31, 2006 Himalayas - Feb. 1 - 28, 2006 Still image - Jan. 1, 2006 Still image - North America - Feb. 12, 2006 Visualization without annotation - Jan. 1, 2006 - Dec. 31, 2006 An ultra-high-resolution NASA computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe.Plumes of carbon dioxide in the simulation swirl and shift as winds disperse the greenhouse gas away from its sources. The simulation also illustrates differences in carbon dioxide levels in the northern and southern hemispheres and distinct swings in global carbon dioxide concentrations as the growth cycle of plants and trees changes with the seasons.The carbon dioxide visualization was produced by a computer model called GEOS-5, created by scientists at NASA Goddard Space Flight Center’s Global Modeling and Assimilation Office.The visualization is a product of a simulation called a “Nature Run.” The Nature Run ingests real data on atmospheric conditions and the emission of greenhouse gases and both natural and man-made particulates. The model is then left to run on its own and simulate the natural behavior of the Earth’s atmosphere. This Nature Run simulates January 2006 through December 2006.While Goddard scientists worked with a “beta” version of the Nature Run internally for several years, they released this updated, improved version to the scientific community for the first time in the fall of 2014. For More InformationSee [http://www.nasa.gov/content/goddard/a-closer-look-at-carbon-dioxide/#.VGpHfC9by7s](http://www.nasa.gov/content/goddard/a-closer-look-at-carbon-dioxide/#.VGpHfC9by7s) Related pages
We investigate the sensitivity of a universe's nuclear entropy after Big Bang nucleosynthesis (BBN) to variations in both the baryon-to-photon ratio and the temporal evolution of cosmological expansion. Specifically, we construct counterfactual cosmologies to quantify the degree by which these two parameters must vary from those in our Universe before we observe a substantial change in the degree of fusion, and thus nuclear entropy, during BBN. We find that, while the post-BBN nuclear entropy is indeed linked to baryogenesis and the Universe's expansion history, the requirement of leftover light elements does not place strong constraints on the properties of these two cosmological processes.
Thomas Steiner 
David Ho
Jason Miller 🦊⚛️
Corey Quinn
Dan Gillmor
Prof Stephen Serjeant