January 1, 2024, the beginning of the new year, there are new developments in the field of technology. Here's this week's tech highlights:
Apple's new patent has been approved to improve the multi-touch experience of the iPhone and iPad. According to foreign media reports, Apple recently obtained a new patent, which describes a method for improving multi-touch devices that can automatically adjust the size and shape of the touch area according to the user's finger position and pressure, thereby improving the accuracy and sensitivity of touch. This patent may be applied to future iPhone and iPad products to bring users a smoother touch experience.
The China Spallation Neutron Source has contributed to the production of a number of major original achievements. The China Spallation Neutron Source is one of the most advanced neutron sources in the world, and it is also a large scientific device independently developed by China. In 2023, the China Spallation Neutron Source will operate for more than 5,000 hours, creating a number of source innovations in the fields of new energy, alloys, polymers, and information materials. Among them, the research team of the Institute of High Energy Physics of the Chinese Academy of Sciences used the neutron diffraction spectrometer of the China Spallation Neutron Source to realize the in-situ neutron diffraction study of lithium-ion batteries under laboratory conditions for the first time, revealing the phase transition mechanism during the charging and discharging of lithium-ion batteries, and providing an important theoretical basis for improving the performance and safety of lithium-ion batteries.
After the RTX 4090 was banned, Nvidia launched a "castrated version" in the Chinese market. In December 2023, Nvidia released its flagship graphics card product, the RTX 4090, which has super performance but has also sparked some controversy. The RTX 4090 was banned from sale in China due to its power consumption of up to 600W, which exceeds China's energy efficiency standards. In response, Nvidia launched a "castrated version" of the RTX 4090 in the Chinese market, reducing its power consumption to 500W to meet China's energy efficiency requirements. However, this has also led to a decrease in the performance of the RTX 4090, with the castrated RTX 4090 performing about 10% and 15% lower in gaming and rendering than the original RTX 4090.