A honor guard soldier stands at attention during a memorial religious service for those killed in the 1989 anti-communist uprising in University Square, in Bucharest, Romania, Wednesday, December 21, 2022. Participants and relatives of those killed marked the 33rd anniversary of the anti-communist uprising which started in Bucharest on Dec. 21, 1989 and left more than one thousand people dead and ended the rule of dictator Nicolae Ceausescu. (Photo by Andreea Alexandru/AP Photo)

A Taliban fighter stands guard as a woman walks past in Kabul, Afghanistan, Monday, December 26, 2022. Recent Taliban rulings on Afghan women include bans on university education and working for NGOs, sparking protests in major cities. Security in the capital Kabul has intensified in recent days, with more checkpoints, armed vehicles, and Taliban special forces on the streets. Authorities have not given a reason for the tougher security. (Photo by Ebrahim Noroozi/AP Photo)

Visitors throw colored powder over each other as they attend the 9th annual festival Day of India in Moscow, Russia, 15 August 2024. The festival Day of India is a colorful celebration of Indian culture. The event kicked off on India's Independence Day and will continue until 18 August 2024. India declared its independence from British rule on 15 August 1947. (Phoot by Yuri Kochetkov/EPA)

Russian pop art photographer Sergey Chilikov captures a nation liberated from the social oppression of late-era Soviet rule – at parties, in the streets, and bouncing high. His exhibition, Photoprovocations, will be at Photo London, 19-22 May. Here: Yoshkar-Ola, Matrosova Street (1995). (Photo by Sergey Chilikov)

A grizzly bear eats a frozen fruits during a hot summer day at Rio de Janeiro's zoo January 13, 2015. According to a local climate institute, temperatures in Rio de Janeiro on Tuesday rose up to 34 degrees Celsius (93.2 degrees Fahrenheit). (Photo by Sergio Moraes/Reuters)

The Ohio State cheerleaders celebrate after their team defeated Notre Dame 34-23 in a college football championship game in Atlanta, Georgia on January 20, 2025. (Photo by Hoss McBain/ZUMA Press Wire/Alamy Live News)

A member of the Eton public school O.T.C. (Officers Training Corps) practising shouting out orders during a training session, 20th January 1940. (Photo by Hulton Archive/Getty Images)

Only with a pencil, ruler and protractor, without the help of a computer, Venezuelan artist Rafael Araujo creates complex fields of three dimensional space where butterflies come to life and shells rise from mathematical spirals.