Do you think the shape of raindrops like teardrops? Click one of buttons Yes No
It is incorrect ! Please click the NEXT button to see the reason. Oh Dear! NEXT
Do you think the shape of rain likes the tear? Pls click one of buttons Pls click the NEXT button to see the real shape of rain drop Congratulations! Answer is correct! NEXT
According to the study by Philipp Lenard in 1898, the small raindrops (< 2 mm diameter) are approximately spherical.
During falling, rain drops take on shapes with flattened bases and rounded tops. Thus, they like falling hamburger buns than teardrops.
Do you think the drops can keep the shape of larger hamburger buns during falling?
Do you think the drops can keep the shape of larger hamburger buns during falling? Please click the correct button. Yes No
Ha! Ha! Pls click NEXT button to find out the truth. It is incorrect! NEXT
Good Job! Do you know what shape of larger raindrops change during falling? Click the NEXT button to see the result. NEXT
If size of drop is less than 5mm, the drop can keep the shape like hamburger bun. If size of drop is greater than 5mm, the force of air breaks the surface tension of drop. Thus, the drop is broken into the smaller drops like hamburger bun again! Such phenomenon continues until the drop has fallen on the ground.
Web Site For Details Of Shape Of Raindrops • http://www.suite101.com/article.cfm/science_sky/91232 • http://www.ems.psu.edu/~fraser/Bad/BadRain.html • http://weather.about.com/od/cloudsandprecipitation/a/rainburgers.htm • http://en.wikipedia.org/wiki/Rain_drop • http://www.shorstmeyer.com/wxfaqs/float/float.html You can click the above website address to see the details of shape of rain drop, or click END button to finish this lesson. END