1. Article
1.1. Article headings
1.1.1. Text selection share
1.1.2. Sharing buttons
1.1.2.1. Facebook
1.1.2.2. Twitter
1.1.2.3. Reddit
1.1.2.4. Email
1.1.2.5. Others
1.1.3. Series icon or name
1.1.4. Table of contents for subsections
1.1.5. Save to read later
1.1.6. Related tags
1.1.7. Popularity score
1.1.8. Print
1.1.9. e-reader download
1.1.10. Download PDF
1.1.11. Article summary
1.1.12. Reading progress bar
1.1.13. Author
1.1.14. Number of comments
1.1.15. Publication date
1.1.16. Kicker
1.1.17. Headline
1.2. Article body
1.2.1. Photos
1.2.1.1. Caption
1.2.1.2. Credits
1.2.1.3. Sharing meta-data
1.2.1.3.1. Title
1.2.1.3.2. Teaser
1.2.1.3.3. Artist's name
1.2.2. Interactives
1.2.2.1. Credits
1.2.3. Puzzles
1.2.4. Podcast
1.2.4.1. Inline player
1.2.5. Quotes
1.2.6. Q&A
1.2.7. Links to sources
1.2.8. Videos
1.2.8.1. Credits
1.2.8.2. Header
1.2.8.3. Title
1.2.8.4. Time duration
1.2.8.5. Description
1.2.8.6. Video player
1.2.8.7. Transcript
1.2.9. Footnotes
1.2.9.1. At footer
1.2.9.2. Inline
1.2.10. Last update time
1.3. Below article
1.3.1. Related articles
1.3.2. Comments
1.3.2.1. Leave a comment
1.3.2.2. Reply
1.3.2.3. Vote
1.3.2.4. Commenter
1.3.2.4.1. Name
1.3.2.4.2. Position
1.3.2.4.3. Short description
1.3.2.5. Receive notification on reply
1.3.2.6. Receive notification on new comment
1.3.3. Related tags
1.4. Sidebar
1.4.1. Background-info articles
1.4.2. Researchers in article
1.4.2.1. Short biography
1.4.2.2. Social media links
1.4.3. Universities in article
1.4.3.1. Short description
1.4.3.2. Social media links
1.4.4. Article blurb
1.4.5. Other articles from the same series
1.4.6. Most shared articles
1.4.7. Most viewed articles
1.4.8. Related or recent blog post
1.4.9. Related videos
1.4.10. Related articles or series
1.4.11. Recommended books
1.4.12. Popular tags in category
1.4.13. Ads
1.4.14. Podcast player
2. Tags index
2.1. Most popular tags
3. Footer
3.1. About Quanta
3.2. Archive
3.3. Contact Us
3.4. Terms & Conditions
3.5. Privacy Policy
3.6. Simons Foundation
3.7. Jobs
3.8. Newsletter subscription
4. Main navigation
4.1. Physics
4.2. Mathematics
4.3. Biology
4.4. Computer Science
4.5. Video & Interactives
4.6. Blog
4.7. Puzzles
4.8. Podcasts
4.9. All articles
4.10. Subscribe
4.10.1. Most recent newsletter
4.10.2. Choose media types and topics
4.11. Search by keywords
5. Homepage
5.1. Headline article
5.2. Latest articles
5.3. Most viewed articles
5.4. Latest videos
5.5. Latest puzzles
5.6. Latest interactives
5.7. Latest columns written by a scientist
5.8. Latest podcast
5.9. Latest blog pieces
5.10. Editor choice
5.11. Video player
6. Category
6.1. Type
6.1.1. Video & Interactives
6.1.1.1. Filters
6.1.1.1.1. By date
6.1.1.1.2. By topics
6.1.1.1.3. By types
6.1.1.2. Video player
6.1.2. Common
6.1.2.1. Articles list
7. Sidebar
7.1. About Quanta
7.2. Stay Connected
7.2.1. Facebook
7.2.2. Youtube
7.2.3. RSS
7.2.4. Subscribe
8. Author Profile
8.1. Name
8.2. Biography
8.3. Website link
8.4. Social media links
8.5. Email
8.6. Articles list
9. Search
9.1. Keyword
9.2. Advanced options
9.2.1. Typo suggestion
9.2.2. Filters
9.2.2.1. Topic
9.2.2.2. Tag
9.2.2.3. Date range
9.2.2.4. Author or artist
9.2.2.5. Type of article or media
9.2.3. Sorting *
9.2.3.1. by popularity
9.2.3.2. by relevance
9.2.3.3. by date
9.2.3.4. by category
9.2.4. Include comments ?
9.3. Results
10. About
10.1. About text
10.2. Syndication
10.3. Jobs
10.4. Corporate package (Press kit)
10.5. About Simons Foundation
10.6. Corporate news
10.7. Link to Contact Us
11. Terms & Conditions
12. Privacy Policy
13. Contact Us
13.1. Contact form
13.1.1. Predefined subject
13.2. Team
13.2.1. Description
13.2.2. Photo
13.2.3. Social media
13.2.4. Contact
13.3. Advisory board
13.3.1. Description
13.3.2. Photo
13.4. Contributors
13.4.1. Description
13.4.2. Photo
13.4.3. Articles or art
13.4.4. Social media links
13.4.5. Contact
14. My Account
14.1. Profile
14.1.1. Name
14.1.2. Position
14.1.3. Biography
14.1.4. Avatar