2024年1月12日 · We use a technique called photoelasticity and create thin avalanches to reveal what's going on inside the avalanche. We track photoelastic particles with a high-speed camera and can observe...

5 天之前 · avalanche, a mass of material moving rapidly down a slope. An avalanche is typically triggered when material on a slope breaks loose from its surroundings; this material then quickly collects and carries additional material down the slope.

Observers rate the size of an avalanche based on its destructive potential: D1 avalanches are harmless, D2 avalanches can injure or kill people, D3 avalanches can destroy a house or car, D4 avalanches can destroy buildings or mature forests, and D5 avalanches can gouge the landscape.

Most avalanches occur spontaneously during storms under increased load due to snowfall and/or erosion. Metamorphic changes in the snowpack, such as melting due to solar radiation, is the second-largest cause of natural avalanches. Other natural causes include rain, earthquakes, rockfall, and icefall.

2018年9月17日 · Some of the world's deadliest avalanches have caused the deaths of hundreds of thousands of people. A powerful avalanche can completely destroy buildings and other constructions that come in its way. Houses, shacks, cabins, and even the ski resorts can be ruined during this disaster.

Snow avalanches kill over 150 people each year worldwide. Learn what causes an avalanche, different types, and more interesting facts.

One technique is to deliberately trigger small, controlled avalanches when no one is on the slope. Staff and researchers first study the snowpack either by digging pits and analyzing each layer or by using radar technology. They then start an avalanche with explosives or artillery fire.

2019年7月19日 · Humans trigger 90 percent of avalanche disasters, with as many as 40 deaths in North America each year. Most are climbers, skiers, and snowmobilers. Learning about avalanches, and the...

2014年10月18日 · Just a little extra weight on a slab of snow can create a deadly, downhill force of nature. Cartoon avalanches start with a snowball merrily rolling downhill, picking up more snow as it travels....

2023年10月6日 · During an avalanche, a mass of snow, rock, ice, soil, and other material slides swiftly down a mountainside. It can cause heavy causalities and change the geography of the region substantially. Read here to know more.