RaeesUlHassan
Atmospheric & Aerosol Physics Researcher
Studying how urban smog and engineered particles seed ice — and turning that curiosity into public air-quality data for Pakistan.
Ice nucleation · urban aerosols · atmospheric physics
A droplet of water
At room temperature, molecules jostle freely. Nothing wants to freeze — yet.
Below zero, still liquid
Pure water can chill far past 0 °C without freezing. This is supercooling: freezing needs a trigger.
Nucleation — ice, instantly
A single particle gives ice a foothold. Crystals race outward in a fraction of a second. My research asks what makes the best triggers — from Lahore smog to DNA origami.
Supercooling before a droplet freezes
Microfluidic “crystal hotel” structures designed
Accuracy of our NASA Space Apps model
Volunteers grown at TA’AB non-profit