Yep, every eleven years, when the magnetic activity of sunspots is peaking. The charged particles interact with Earth’s magnetic field, and they’re pulled toward the North and South Poles. Some of them make it into our upper atmosphere, where they collide with atoms—with oxygen and nitroge...
What is the digital or HD replacement for the 1700 series waveform monitors and vectorscopes? 回答: Tektronix now offers a variety of digital and high-definition waveform monitor/vectorscope combination instruments. For digital standard-definition applications we recommend the WFM601, WVR610...
Another example of the invisible hand is the ripple effect that a retail company can have when attempting to meet consumer demand. Consider a hardware store that anticipates demand for yard maintenance tools. The hardware store will coordinate with a manufacturer to secure the appropriate goods. Me...
Thelargestcontinent in the world isAsia, which covers an area of 17.2 million square miles. Asia and Africa are often considered for this distinction but it is Asia that is the largest in both landmass and population. The continent is home to the world’s two most populous countries, China ...
These two words share similar etymologies as well as similar meanings; their ultimate root is the Latin verb currere meaning “to run,” making their literal meanings “to run again.” Recur is the older word in English, first appearing in the early 1500s and derived straight from the Class...
如:What a clever boy he is! (他是个)多么聪明的男孩啊! What fine weather it is! 多好的天气啊! 在感叹句中,What a / an 常用来修饰单数可数名词,若其前面的形容词为元音开头,则用 an。 what 是用来修饰复数可数名词和不可数名词。但...
From Valentine’s Day cards to messages from your mom, a typical sign-off to show love and affection isXOXO. TheXstands for kiss and theOstands for a hug—but why? Well, the origin of these symbols is uncertain, but we can make some educated guesses about where they come from. ...
Enjoy yourself -- it's later than you think. — Socrates 52 To enjoy the rainbow, first enjoy the rain. — Paulo Coelho 25 your body is not a temple, it's an amusement park. Enjoy the ride. — Anthony Bourdain 88 This moment,which we are living right now will pass too. We ...
Gain insight: how to pick the right solution Evaluating and selecting planning, budgeting and forecasting software is a complex task. It requires careful consideration of the software’s functionality, its value to the planning process and its ability to support planning best practices. There are al...
You can obtain the default accounts and passwords according to S Series Switches Default Usernames and Passwords (for enterprise users or carrier users). The permission level of this document is C (customer support level). If you need to upgrade the permission level, see the help document on ...