Chapter 4.pdf
18 pages
Leaf cross-section.png
Quiz on Friday
Which pigment is made fresh each autumn?
Before Friday
Read chapter 4
Draw the leaf
Quiz myself
Built for people who think in pictures.
Timeless is an open canvas for your Mac: notes, stickies, images, PDFs, videos and links. Lay ideas out where you can see them, then open any card to write.
Why do leaves change color?
Chlorophyll breaks down as the days get shorter. The yellows and oranges, carotenoids, were in the leaf all along.
Reds are different. Anthocyanins are made fresh each autumn, from sugars trapped in the leaf.
See the cross-section sketch →
Quiz on Friday
Three pigments: chlorophyll, carotenoids, anthocyanins. Which one is made in autumn?
Draw it out
Map how sunlight, water and CO₂ move through a single leaf.
Sometimes our brains don’t work in lists. We need to save references, pin up the picture that made it click, and keep the question next to the answer. Timeless is a space for that kind of thinking, where everything you’re learning can sit side by side.
Everything you’re learning, on one space
Follow one study session, from the first card to the finished note. Every window below is live: drag, click and type.
Drag a card · right-click to add
Why do leaves change color?
Chlorophyll breaks down as the days get shorter. The yellows were there all along.
PNG or JPEG
Draw it out
Sunlight, water and CO₂ through one leaf.
Quiz on Friday
Which pigment is made in autumn?
- Canvas
Lay it out where you can see it
Your space has no edges to plan around. Drag a card anywhere, or right-click to add a note, sticky or image right where you are.
- Spaces
Bring everything you’re learning
Drop PDFs, videos and links next to your notes, draw an arrow between two ideas, and give each space one of five themes.
- Snapping and groups
Tidy without trying
Cards settle into line with their neighbours as you drag. Select a few and press ⌘G to group them right where they lie.
- Search
Find anything with ⌘K
Every note, card and space is one shortcut away, with your words in bold. It works on this page too: press ⌘K.
- Editor
Open any card to write
A card opens into a calm, full-window editor with headings, formatting and a shortcut for each. When you’re done, it folds back into its place.
What to use it for
Anything you understand better when you can see it: studying a chapter, researching a topic, planning a project, or keeping what inspires you.
Photosynthesisen.wikipedia.org
Light and colornasa.gov
1:32
Mitosis in 90 seconds
Biology
12 items
Open question
Why do some trees stay green all winter?
Before Friday
Read chapter 4
Draw the leaf
Quiz myself
1 · Outline
Three sections, one question each.
2 · Draft
Write the middle first.
3 · Present
Ten slides, one per idea.
Brief.pdf
4 pages
Slide templatekeynote.app
Stairs, looking up
Brooklyn Bridge
Sea from the cliff
2:14
Light reactions explained
Color palettescoolors.co
Why I keep it
The light in that one photo.
Latest updates
Oct 24, 2026
Style titles and shape labels
Give a title or a label its own look: pick a typeface, make it bold, align it and color it from a small bar over what you select.
Oct 24, 2026
Resizing snaps into line too
Pull a card's edge and it settles in line with the cards around it, with the same guides as dragging. Dragging now snaps to even spacing as well.
Oct 24, 2026
PDFs keep their links, and wide tables fit the page
A note saved as a PDF keeps every link clickable, and a wide table prints scaled to the page with its columns lined up.
Simple pricing
True, nobody asked for yet another subscription. But it’s not free to create software that’s available for everyone. What you pay mainly keeps the lights on, so I can keep putting my time into Timeless.
So Free stays free, for as long as you like, and if subscriptions aren’t your thing, Lifetime is one payment.
Santiago, maker of TimelessMonthlyYearly Save 37%
Free
$0
free forever
For trying Timeless on your Mac.
- Up to 3 spaces for notes and stickies
- Search everything with ⌘K
- Saved on your Mac as you type
Popular
Pro
$3.99
a month
For everything you think in pictures.
- Everything in Free
- Unlimited spaces
- Boards & diagrams
- PDFs & video
- Space themes
Lifetime
$200
once
For keeping Timeless for good.
- Everything in Pro
- Pay once, no subscription
- Yours to keep
Timeless is free to download. Choose Pro or Lifetime from your account inside the app, whenever you’re ready.
Questions
Something else? Ask me →Download it from this page, open the disk image and drag Timeless into Applications. It’s free to start, and Pro is a few clicks away from your account inside the app.
Yes. Free gives you up to 3 spaces for notes and stickies, search and everything saved on your Mac, with no time limit. Pro adds unlimited spaces, boards and diagrams, PDFs and video, and space themes, for $3.99 a month or $29.99 a year. Lifetime is $200 once.
On your Mac, in the app’s Application Support folder. Timeless saves as you type, and ⌘S saves right away. Your notes and files aren’t uploaded anywhere.
Not yet. Everything lives on the Mac you use it on. Backups and exporting your whole library are on the roadmap.
A Mac running macOS 26.5 Tahoe or later, with Apple silicon or Intel.
Pro stays on until the end of the period you paid for, then your account moves to Free. Everything you made stays on your Mac and opens as before; you just can’t add more of what Pro adds.
No. The free plan has no time limit, so you can use Timeless for as long as you like before deciding. Pro is charged when you subscribe, and you can cancel any time.
Your account is how Timeless knows your plan. Sign in with a code sent to your email, or with Google. Your notes and files never go to the account; they stay on your Mac.
Notes, stickies, images, PDFs, videos and links. Group them in folders and connect any two with an arrow. Timeless keeps a copy of every file you add.
Press ⌘K to search every note, card and space. Pick a result to open it, or press ⌘Return to see it on its space.
Yes. Tab to a card and press Return or Space to open it. In a note, ⌘B, ⌘I and ⌘U format text, / on an empty line opens the paragraph menu, and ⇧⌘F turns on Focus Mode.
Timeless checks for a new version once a day, downloads it quietly and installs it the next time you quit. You can also choose Timeless ▸ Check for Updates. Keep Timeless in your Applications folder so it can update itself.
Your space is ready
Download Timeless, drag it into Applications, and start laying out your ideas. It needs macOS 26.5 or later, on Apple silicon or Intel.
Download for Mac