Sharks’ Predation Mystery, Gold Nuggets in Quartz Veins, Hydrogel for Osteoarthritis

Scientists uncover the first documented predation event of a porbeagle shark, revealing complex interactions between large sharks. Discover the fascinating science behind the accumulation of gold nuggets in quartz veins. Chinese scientists make a groundbreaking discovery in the treatment of osteoarthritis with a hydrogel material. Plus, the Carnegie Science Center hosts a free and educational event called 'MessFest' for kids to engage in hands-on science experiments.

Sources:
https://phys.org/news/2024-09-large-sharks-scientists-swallowed-tracking.html
https://www.thehindu.com/sci-tech/science/could-quakes-explain-why-gold-nuggets-are-found-in-quartz-veins/article68599453.ece
https://www.scmp.com/news/china/science/article/3276748/chinese-scientists-say-their-hydrogel-invention-can-treat-most-common-form-arthritis
https://www.wpxi.com/news/local/carnegie-science-center-offers-free-admission-messfest/6HZJIJXLVJHNBLB5NIPPCHBEHM/

Outline:
(00:00:00) Introduction
(00:00:38) Large sharks may be hunting each other—and scientists know because of a swallowed tracking tag
(00:03:21) Could quakes explain why gold nuggets are found in quartz veins?
(00:06:24) Chinese scientists devise hydrogel material able to ‘slow down osteoarthritis’
(00:09:23) Carnegie Science Center offers free admission for ‘MessFest’