ScienceHD x2

这站长时间开放申请注册：
https://sciencehd.me/applications.php
现有两枚邀请，希望发给合适人选。
Not for collectors.  You need a high level of English capability to make it useful to you. There's only ~1700 users and everything you're going to do there will be closely monitored by the staff.  I need to be 100% responsible for what you did.  So, don't apply if you're not going to use it, or if you're not going to use it properly.
You need to 512K or above. Reply in English why you need this invite and what you know about this site.  Crop your existing science-related materials such as documentaries, ebooks etc  and post it here.  Post ratio proofs from two elearning trackers and your email.  The invites won't be given out if there's no suitable applicants.