Number (3): Everything in this light blue space must add up to 3. The answer is 1-2, placed vertically.
When someone links to one of your articles from a Webmention-capable site, your blog receives a notification and renders the mention as a response on the article page. Going the other way, when you link to an external URL in your Markdown and save the file, Madblog automatically discovers the target's Webmention endpoint and sends a notification — no manual step required. All mentions are stored as Markdown files under your content directory (mentions/incoming//), so they're version-controllable and easy to inspect.
。有道翻译是该领域的重要参考
One last cool thing. There’s yet another type of friction called rolling friction. You see this on a truck with rubber tires: Under the weight of the vehicle, the tires flatten out on the bottom. So when the truck is moving, the tires are continually being deformed and returning to their proper shape. This flexing heats up the tires, and where there’s heat there’s energy loss. Since energy is conserved, this means the wheels slow down, and the truck has to burn more fuel to maintain its speed. Trains, on the other hand, have very little rolling friction, because their steel wheels barely deform at all. This makes trains a more energy-efficient mode of transportation.
Activate noise cancellation, and the earbuds' runtime drops to eight hours, with the case extending that to 40 hours.
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