The diameter is only half a centimeter around. It is much more like one planoconvex lens. The droplet is not a perfect spherical one owing to the gravity. when light passed from one transparent medium into another, part of the incident light is reflected at the boundary. This is a perfect example of the path changing of the light rays due to the different index of refraction of air and water. The flowers in the droplet of water were formed by the refraction of light. I took this picture just after it was watered in the morning. Penny grass is a tiny, umbrella like grass.

SCL International Youth Arts Festival (China).

The London International Youth Science Forum.

International Writing, Photo and Multimedia Contest.

Cambridge University Journalism Summer Camp.

Cambridge University Amateur Dramatic Summer Camp.

Massachusetts Institute of TechnologyвЂ™s Model United Nations Conference (MITMUNC) Recommended.

Rural Vitalization: Support for Local Startups in Rural Areas of Yunnan Province.

Art Therapy (Arte Terapeutica Condivisa) of People with AlzheimerвЂ™s.

Scientific Research on Biodiversity of Gaoligong Mountains.Sichuan Minshan Life Gene Bank Protection.Xishuangbanna Rainforest Protection and Pratice-United Nations Project.Poyang Lake Yangtze Finless Porpoise & Migratory Bird Protection.Stanford Pre-Collegiate International Institutes.

Oxford Summer School(Ages 19-25) Ages 19 - 25.гЂђOnlineгЂ‘Imperial College London Online Program recommend.International Academic Competitions (IAC).

Particle illusion shockwave smoke