Instant Ice: What Supercooled Water Demonstrations Reveal
The water pours like a liquid, then seems to become ice as it lands. The surprise in this demonstration is not that the water suddenly beco...
science videos
How Trees Survive Winter: Leaves, Dormancy and Spring Buds
A leafless tree and a green conifer can share the same snowy landscape while looking as if they have chosen completely different seasons. M...
An Ice Lens and the Concentration of Sunlight
Transparent ice can bend light, which makes an ice lens an intriguing optical demonstration. The surprising part is not that ice produces e...
Dry Ice in Water: Understanding the Low White Cloud
Dry ice added to water produces an impressive low white cloud. The key distinction is that dry ice is solid carbon dioxide, while the visib...
Yellowknife’s Hot-Water Cloud in Extreme Cold
The Yellowknife clip turns a splash of hot water into a bright cloud against a cold outdoor background. The effect is visually striking, bu...