Library

Library is where you put the material you want to work from: PDF, Markdown, and text files, text you paste in, and saved copies of web pages. It stays exactly as you added it — material to read, not to write in (Notes are for that). Mesh reads it and uses it when answering you: finding a source, reading it, renaming it, or connecting it to a Topic are all things you can ask for.

Add to Library

Choose Add to open the Add to Library window. Stage any mix of items, set whether Mesh reads each one, then add the whole batch at once. After you confirm, Library names what it is adding until it finishes or reports a problem.

Files: Drop or browse for PDF, Markdown, or text files, several at a time, up to 30 MB each. Word and Excel files are not accepted directly — export them to PDF first.
Website link: Paste a web address. The link saves right away and Library captures a dated copy of the page in the background. Pages behind a login or paywall cannot be captured — save those as a PDF, or paste the text in with Write text.
Write text: Write or paste any text and save it as a Markdown file. A title is optional.

Paste anywhere in the window and it sorts itself out: files land in Files, a lone URL becomes a Website link, and anything else goes to Write text.

Adding is yours to do: Mesh cannot put anything into Library. When you want what a public page says right now rather than a saved copy of it, ask Mesh to read it live instead.

Choose what uses Library storage

Every item is either in Library storage or out of it. In it, Mesh can read the item; out of it, the item is still yours but Mesh cannot read it. You choose as you add it, and you can change your mind at any time — tap the check or the crossed-out eye at the end of a row to see and change it.

In Library storage: The item uses Library storage, so Mesh can read it and use it when answering you.
Not in Library storage: The item is still yours: it stays in Library, still opens and previews, and still pins to the Board. It uses no Library storage, and Mesh can't read it.

Take out of Library storage and Put in Library storage flip it, from the card or the row menu, and the switch is yours alone — Mesh cannot change it. Taking an item out is not deleting: nothing leaves Library. Putting an item back needs room in Storage, and Mesh prepares it again.

A source in Library storage is one you no longer have to open yourself: “What does this say about refunds?” is a question you can put to Mesh. What Mesh can do has the range.

Every row shows its kind and its state

Each row shows a compact kind icon — a document for PDF, MD for Markdown, T for Text, a globe for Web links — and one state beside it:

Ready: Mesh can read this one and use it when answering you.
Not in Library storage: You took it out of Library storage: the file still opens, and Mesh can't read it.
Preparing: Mesh is working on it.
Still preparing: Further along, and taking a while. Mesh checks about every minute and keeps trying until the file is ready or Try again appears.
Queued: Mesh prepares up to four files at once; this one starts as soon as a spot frees up.
Waiting to retry: An attempt did not finish, and Mesh will try again on its own.
Failed: Mesh could not prepare this one. When another attempt can help, the row offers Try again right there.
Capturing this page: A saved web page whose dated copy Library is still making.
Capture failed: A saved web page that could not be captured. Retry capture sits in the row menu.

Preview the saved copy

Select a row and what Library saved opens beside the list, with its In topics in the header. Deleting can't be undone, and it stays yours — Mesh never deletes a source. Each kind opens the way it should:

Library

UML Chemistry Chapter4

1ToolsPin to Board

Contents1/ 12100%Search

UML GENERAL CHEMISTRYCHAPTER 4

UNIVERSITY OF MESH LEARNING · CHEM 101 · GENERAL CHEMISTRY I

Chapter 4: Chemical Bonding and Molecular Structure

Why atoms combine, how they share electrons, and what that means for the shape of matter

LEARNING OBJECTIVES

Distinguish ionic, covalent, and metallic bonding using electronegativity.
Draw Lewis structures for simple molecules and polyatomic ions.
Predict molecular geometry with the VSEPR model.
Relate bond polarity and geometry to overall molecular polarity.

4.1 Why Do Atoms Bond?

Isolated atoms are rare in nature. With the exception of the noble gases, nearly every element you encounter is bound to something else.

4.2 Three Families of Bonds

Ionic bonds arise when ΔEN is large (conventionally > 1.7). One atom effectively transfers electrons to the other, producing ions held together by electrostatic attraction.

Covalent bonds form when ΔEN is small. Atoms share one or more electron pairs, producing discrete molecules.

UML GENERAL CHEMISTRYCHAPTER 4

4.1 Why Do Atoms Bond?

Isolated atoms are rare in nature. With the exception of the noble gases, nearly every element you encounter is bound to something else.

4.2 Three Families of Bonds

Ionic bonds arise when ΔEN is large (conventionally > 1.7). One atom effectively transfers electrons to the other, producing ions held together by electrostatic attraction.

Covalent bonds form when ΔEN is small. Atoms share one or more electron pairs, producing discrete molecules.

Markdown and text: Markdown renders formatted; a text file shows exactly as written. A very long file previews its first stretch and says so — Mesh still reads all of it.
PDF: The pages sit one under another. The strip above them steps through pages, zooms, searches the text, and opens the original file; Contents lists the file's own chapters when it has them, and Tools in the header folds the strip away. Click a page and the keyboard works like a browser's viewer: Ctrl/Cmd+F searches, Ctrl/Cmd+= and Ctrl/Cmd+- zoom.
Web link: You read the dated copy Library captured, laid out like the page it came from. Link holds the address, the capture date, and Refresh to capture again; Open website opens the live page. No copy to show? The notice says why, with Retry capture.

Library remembers your place for the session: Markdown, text, and web copies return to the same scroll; reopen a PDF and it restores the page, zoom, and scroll position.

Pin sources to the Board

A Library source can also live as a pin on the Board, so you can read it beside your work instead of switching panels.

Pin to Board sits above the preview. A PDF asks which pages to place first, up to 25 pages per range.
Once placed, the header becomes a split control: Pinned here on the current Board page, or Pinned when the copies sit elsewhere, plus an attached :plus: button.
The labeled side opens the list of every copy, each with Go to flag; the attached plus always pins another copy. A pinned row shows the same pin in front of its title.

Tip: Rename a source the moment you add it. The title is what Mesh, search, and the Board all show, so Chapter 4 - bonding finds itself again months later and document (3).pdf never will.