被Torvalds种草了，在下想配一台AMD县城撕裂者3970X的电脑 (预算1万多? ...等一下... CPU好像就不止1万了；不含显示器)
(换掉家里的主力办公机Raspberry Pi 3B，只能用w3m开很多标签页)
现在有没有什么靠谱的整机购买渠道？一个一个买配件太心累了.. 买mac pro又买不起>_<
同类型的其它硬件可以看看USRP B210, LimeSDR, PlutoSDR, BladeRF
【 在 lobachevsky (罗巴切夫斯基) 的大作中提到: 】
- 万一Zoom不能用，我们用Google Meet
其实原文里说的是147.060MHz + PL tone of 100Hz, KN6CDY
如果有核爆导致电磁场非常强，建议用真空管 或 法拉弟笼
Subject: Online Discussions and Office Hours
as you probably already anticipated, I will move my discussion sections and office hours online, starting tomorrow. I'm sure your biggest concern right now is how we can continue to have class. Don't worry -- I am prepared:
- The default method we'll use is Zoom—you'll have to download the client at https://zoom.us. I will post the data you need to join the meeting on bcourses.
- In case Zoom doesn't work for some reason (e.g. because the service is overloaded), we will use Google Meet. If that happens, I'll announce it beforehand. If you don't use an @berkeley.edu email address, I will have to invite you individually, so keep that in mind.
- If Google Meet also doesn't work anymore, I'll use a site called https://explaineverything.com, which is hosted AWS. You'll be able to see a whiteboard and talk to me directly in your web browser, but there's no video.
- In case that also ceases to work, we'll have audio-only discussion sections on my mumble server. I will send the details when it comes to that.
- In the case of bigger infrastructure disruptions (like a large scale power outage), we're going to have sections using amateur radio: I will use the Mt Diablo repeater station at 147.060 MHz with a PL tone of 100 Hz. My call sign is KN6CDY.
- In case the Bay area becomes uninhabitable, I will move to the wilderness. I plan to still be reachable via APRS, but we'll probably have to move sections to shortwave. In that case, we'll use CW transmission, so practice your Morse code.
Note that a nuclear attack in the upper atmosphere can create very strong electromagnetic fields, so if you want to prepare for that, either use vacuum tube based radios, or store them in a Faraday cage.
I hope this assures you that no matter what happens this semester, I will not let it prevent you from learning quantum mechanics.