Snowflakes photographed by new high speed camera

The video explores the history and science of snowflake photography, starting with Wilson Bentley's pioneering work in the 1880s. It contrasts Bentley's idealized images with the more varied results of German meteorologists. In modern times, engineers have developed advanced technology to capture snowflakes in their natural state, providing valuable data for weather prediction. The video also explains the formation of snowflakes and their impact on road conditions, highlighting the importance of accurate weather forecasting.

What was Wilson Bentley's significant contribution to the study of snowflakes?

• He developed a new type of microscope.

• He discovered that all snowflakes are identical.

• He invented a machine to create artificial snowflakes.

• He was the first to photograph snowflakes.

What did Gustav Hellman and Richard Neuhaus discover about snowflakes?

• Many snowflakes are irregularly shaped.

• All snowflakes are perfectly symmetrical.

• Snowflakes cannot be photographed.

• Snowflakes are identical across the globe.

What is the primary purpose of the Present Weather Imager (PWI)?

• To melt snowflakes for study.

• To create artificial snowflakes.

• To photograph snowflakes in their natural state.

• To predict the exact time of snowfall.

How does the PWI capture snowflakes without altering them?

• By freezing them instantly.

• By using a high-speed camera and infrared motion sensor.

• By placing them on a heated surface.

• By capturing them in a vacuum.

What is the process called when a snowflake collides and freezes with other water droplets?

• Condensation

• Rhyming

• Evaporation

• Aggregation

What type of precipitation is formed when snowflakes collide with each other?

• Sleet

• Graupel

• Aggregate

• Hail

How can the data from the PWI potentially save lives?

• By creating more beautiful snowflake photographs.

• By improving weather warnings and road safety.

• By predicting the exact temperature of snow.

• By eliminating the need for snowplows.