A team from Woody's Ice Cream shop wrangle a large inflatable dinosaur down the street during the Independence Day Parade in Fairfax, Virginia July 4, 2015. Americans marched in star-spangled parades, ran relay races, gathered for fireworks shows and crowned a new world hot dog eating champion as they celebrated Independence Day in traditional style on Saturday. (Photo by Jonathan Ernst/Reuters)

An arrow-head discovered in 2006 by Archaeologists of the University of Cambridge Archaeological Unit, is displayed by one of the team uncovering Bronze Age wooden houses, preserved in silt, from a quarry near Peterborough, Britain, January 12, 2016. Archaeologists said on Tuesday they had discovered what were believed to be the best-preserved Bronze Age dwellings ever found in Britain, providing an extraordinary insight into prehistoric life from 3,000 years ago. (Photo by Peter Nicholls/Reuters)

The team from France performs their Free Routine during the Synchronized Swimming Olympic Games Qualification Tournament at the Maria Lenk Aquatics Center in Rio de Janeiro, Brazil on March 6, 2016. The tournament is also a test event for the Rio 2016 Olympics. (Photo by Sergio Moraes/Reuters)

Elise de Jong of Team Netherlands competes in the Women's Pole Vault during day two of the European Athletics U20 Championships 2025 on August 08, 2025 in Tampere, Finland. (Photo by Maja Hitij/Getty Images for European Athletics)

Robbie Lee of Team Great Britain competes in the Men's 10m Platform Preliminaries on day 23 of the Singapore 2025 World Aquatics Championships at OCBC Aquatic Centre on August 02, 2025 in Singapore. (Photo by Adam Pretty/Getty Images)

Cristiano Ronaldo of team Al-Nassr FC scores their fourth goal during the Saudi Pro League match between Al Nassr and Al Khaleej at Al Awwal Park on November 23, 2025 in Riyadh, Saudi Arabia. (Photo by Abdullah Ahmed/Getty Images)

Alexandre Vinokourov of Kazakhstan from the T-Mobile Team is chased by eccentric german inventor Didi Senft dressed as the red devil during the stage 16 of the 92nd Tour de France between Mourenx and Pau on July 19, 2005, France. (Photo by Friedemann Vogel/Bongarts/Getty Images)

The lightest material ever made has been produced by a team of scientists in China, a Chinese university announced.