A visitor jumps for a photograph on the world's highest and longest glass-bottomed bridge above a valley in Zhangjiajie in China's Hunan Province on August 21, 2016. The bridge, which opened to the public on a trial basis on Saturday, spans 430 meters (1,410 feet) and rises about 300 meters (984 feet) above a valley in a scenic zone, making it the world's highest and longest glass-bottomed bridge according to Chinese state media. (Photo by Fred Dufour/AFP Photo)

Madison Chock, top, and Evan Bates, bottom, perform during the ice dance rhythm dance competition at the U.S. figure skating championships Friday, January 24, 2025, in Wichita, Kan. (Photo by Travis Heying/AP Photo)

A rat's head rests as it is constricted in an opening in the bottom of a garbage can in the Brooklyn borough of New York, U.S., October 18, 2016. The Brooklyn rat was saved on Tuesday after getting its head stuck in the dumpster while scavenging for food, according to the New York Daily News. As the rat was scurrying around the bottom of the trash can, it came across a few ventilation holes. The hungry creature poked his head into one of them, but to its dismay couldn't get back out,Reuters photographer Lucas Jackson told the Daily News. Jackson was able to take some adorable photos of the rat's unfortunate situation before it was rescued. (Photo by Lucas Jackson/Reuters)

A 42-day-old white bengal tiger cub (bottom), the first of its kind born in Peru, sleeps between toys as he is presented at the Huachipa's zoo in Lima on August 6, 2013. (Photo by Ernesto Benavides/AFP Photo)

Darryl Horner jnr riding Flying Agent (bottom R) races away to defeat Steven Pateman riding Bit of a Lad in Race 6, the 3yb Scotty Stewart Brierly Steeplechase, on Brierly Day during the Warrnambool Jumps Carnival at Warrnambool Racing Club on May 04, 2021 in Warrnambool, Australia. (Photo by Vince Caligiuri/Getty Images)

Fishermen are seen near thousands of fish found dead at Lake Maninjau due to lack of oxygen levels at the bottom of the lake and bad weather that hit the area in Agam, West Sumatra Province, Indonesia on April 29, 2021. (Photo by Muhammad Arif Pribadi/Antara Foto via Reuters)

A woman plays around as she walks across a glass-bottomed suspension bridge in a scenic zone in Pingjiang county in southern China's Hunan province Thursday, September 24, 2015. The bridge, 300 meters (984 feet) long and 180 meters (590 feet), opened to visitors on Thursday for the first time since its conversion from a regular suspension bridge was completed. (Photo by Chinatopix Via AP Photo)

Soap Bubble Structures by Kym Cox. Bubbles optimise space and minimise their surface area for a given volume of air. This phenomenon makes them a useful tool in many areas of research, in particular, materials science and “packing” – how things fit together. Bubble walls drain under gravity, thin at the top, thick at the bottom, which interferes with travelling lightwaves to create bands of colour. Black spots show the wall is too thin for interference colours, indicating the bubble is about to burst. (Photo by Kym Cox/2019 Science Photographer of the Year/RPS)