Since iOS 7 abandoned the use of several generations of pseudo-materialized interface, and opened a new flat system, iOS has been perfected on the basis of the previous work every year, making iOS more useful and perfect. Last June, Apple released a new generation of operating system iOS 9, and launched an open upgrade when the new iPhone was released in September. Calculating the time, roughly one month, this year's iOS 10 will be unveiled! So what are the breakthroughs in the new iOS 10? The following small series will give you a summary of the news, so that everyone can better understand the upcoming iOS 10. PS: The message summary does not represent the final official update. If there is any discrepancy, it is purely coincidental~
WWDC Developer Conference Time
In terms of release time, iOS 9 was released in WWDC2015 in June last year and officially launched in September. Not surprisingly, iOS 10 will be unveiled at the WWDC conference in early June this year, officially launched in September, and in the middle of three months, developers can experience in advance and optimize the application.
If it is released, there are children's shoes indicating that the three-month period is too long. Xiaobian is here: Tips for interested children's shoes can be registered for the developer account, you can feel the charm of iOS 10 in advance before the official push.
Why do you like to use ferrite magnets? Because it does not rust, does not oxidize, does not corrode and is absolutely environmentally friendly.
Why don't ferrite magnets rust?
The chemical name of ferrite magnet is iron tetroxide. The main components are: Fe3O4. It is already an oxide of iron, so it is very difficult to be oxidized again. Other magnets (the main component is iron) are made of magnetized metal iron or other elements. Like other iron and steel, they can be oxidized and rusted, and the oxidized part will lose their magnetism.
What are the advantages (advantages) of ferrite magnets
1. Low cost, low price. Raw material cost is cheap.
2. Good temperature stability. It can be used in temperatures of -40 degrees Celsius and +350 degrees Celsius.
3. It is just mentioned that it does not rust.
4. The demagnetization curve is approximately a straight line.
5. Light weight, density is (4.6-5.1) X103kg/M3
6. The anisotropy constant of the magnetic crystal is large.
7. Large coercivity Hc (between AlNiCo alloy material and rare earth cobalt permanent magnet material)
8. High resistivity.
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