最早的时候，谷歌搜索的网址是挂在斯坦福大学的网站上的。谷歌的创始人拉里·佩奇和谢尔盖·布林在1997年发表的论文中说：
“我们认为由广告商来赞助搜索引擎，将会使得搜索引擎的返回结果受到广告商的需求的影响，从而偏离真正的用户需求。广告越多，搜索引擎的搜索质量就越差。正因为广告商的存在会极大影响搜索引擎的质量，我们相信我们的社会需要一个搜索质量优秀、排序公正透明、由学术界监督的搜索引擎。” source
BY 程序员之家
A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year. A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.
Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.
【程序员之家】软件项目百例 from ru