Mariam's Lab
Lab · lab.mariamalzaabi.ae

Things to poke at.

Small experiments from my work in satellite navigation, computer vision, optimization and AI, plus a few about language and philosophy. Everything runs in your browser, so nothing you add leaves your device.

Tool · PDF

PDF tools

Merge, split, reorder, rotate, number, watermark and sign PDFs, and turn photos into a PDF. Your files never leave your device.

Open →
Earth observation · Tool

Earth from space, your way

A real Sentinel-2 image of Abu Dhabi. Mix its bands to see vegetation, water and city in colours your eyes can't see.

Explore →
GNSS · Security · Game

Spoof or real?

Six drives, six receivers. Read the signal strength and the track and call each one clean, jammed or spoofed.

Play →
Neuromorphic · Sound

A spiking neuron

Feed a neuron spikes and watch it charge, leak and fire. Hear it, and see why event-driven chips save work.

Fire →
Optimization · Game

Timetable puzzle

Fit the courses into rooms and slots with no clashes, then race a genetic algorithm and an ant colony.

Solve →
Energy · Optimization

Run a solar house

Schedule the washing, the car and the dishwasher around a UAE solar day, then let a planner try.

Plan →
Optimization · Game

Blend it right

Three tanks, three orders, limited stock. Blend each order on spec at the lowest cost, then see what an optimizer finds.

Blend →
GNSS · Game

Get a fix

Satellites only know how far away you are. Tap where their range circles meet and see how close you get to the truth.

Play →
GNSS · Live data

My sky and yours

The GPS, Galileo and BeiDou satellites above Abu Dhabi right now, next to the ones above your city.

Compare →
Computer vision · Tool

Dehaze your own photo

Drop in an underwater or foggy photo and watch the haze lift, with a before and after slider.

Try it →
Philosophy · Perception

Duck or rabbit?

Wittgenstein's duck-rabbit drifts from one animal to the other and back. Mark when it flips for you, and see whether what you already saw held on.

Look →
Philosophy of language · Game

Slab!

Wittgenstein's builders' language-game. A builder calls out words nobody explains, and you learn them only by using them.

Start building →
Game · Daily

Space Wordle

A new five-letter word from space every day, with a fact for every answer. Can you hear it in Morse?

Play →
GNSS · Sound · Game

Find the signal

A satellite is whispering under the noise. Search by ear, then tune in until your receiver locks on.

Listen →
Signals · Sound

Morse message

Hear your message as Morse or as a 50 bit-per-second data signal, send it as a hidden link, or key your own.

Send →
GNSS · Full screen

Sky over Abu Dhabi

A live, full-screen satellite tracker with the next ISS sighting. Works for your location too.

Open ↗