【中国私企火箭发动机】
中国航天私企蓝箭航天公司的技术人员正在组装「天鹊A」液氧甲烷发动机，浙江湖州。「天鹊A」发动机是蓝箭航天公司自主研制的新一代液氧甲烷火箭发动机，分为12A、13A 和15A 三个型号，最大真空推力达85吨，主要用于朱雀二号商业运载火箭的动力系统，可实现燃烧无积碳和重复使用。这款火箭发动机已进入批量生产和交付阶段，预计2024年产量达到100台。 source
BY 每日环球视野
That strategy is the acquisition of a value-priced company by a growth company. Using the growth company's higher-priced stock for the acquisition can produce outsized revenue and earnings growth. Even better is the use of cash, particularly in a growth period when financial aggressiveness is accepted and even positively viewed.he key public rationale behind this strategy is synergy - the 1+1=3 view. In many cases, synergy does occur and is valuable. However, in other cases, particularly as the strategy gains popularity, it doesn't. Joining two different organizations, workforces and cultures is a challenge. Simply putting two separate organizations together necessarily creates disruptions and conflicts that can undermine both operations.
Since the violent storming of Capitol Hill and subsequent ban of former U.S. President Donald Trump from Facebook and Twitter, the removal of Parler from Amazon’s servers, and the de-platforming of incendiary right-wing content, messaging services Telegram and Signal have seen a deluge of new users. In January alone, Telegram reported 90 million new accounts. Its founder, Pavel Durov, described this as “the largest digital migration in human history.” Signal reportedly doubled its user base to 40 million people and became the most downloaded app in 70 countries. The two services rely on encryption to protect the privacy of user communication, which has made them popular with protesters seeking to conceal their identities against repressive governments in places like Belarus, Hong Kong, and Iran. But the same encryption technology has also made them a favored communication tool for criminals and terrorist groups, including al Qaeda and the Islamic State.
每日环球视野 from de