Age

 https://barryhisblog.blogspot.com/p/age.html

1) How basic high school trigonometry and simple timing disprove YECK. This supernova is around 170,000 light years away from us. And regular pulsar rates from all over the observable universe prove that the speed of light has not changed over time. This meets Kenny Ham's requirement for "observational science" - Repeatable, direct observations in the here-and-now. https://web.archive.org/web/20210316220159/https://chem.tufts.edu/science/astronomy/sn1987a.html

2) How dino remains fail to support (in fact falsify) a YECK chronology. There are no YECK-date-compatible 14C dates from dinos. YECK mandates that all of them should be compatible. https://barryhisblog.blogspot.com/p/c14-and-dinosaur-remains.html

3) How the correlations between different independent dating methods prove that they are reliable. Any method that is wrong would disagree with the others. None do. https://barryhisblog.blogspot.com/p/age-correlations-and-old-earth.html

4) The Oklo reactor. A natural nuclear reactor that also falsifies YECK. https://www.iaea.org/newscenter/news/meet-oklo-the-earths-two-billion-year-old-only-known-natural-nuclear-reactor

5) How geology falsifies a biblical Noachian Flodde. 50+ falsifications by an ex-YECK who had to abandon YECK to make a successful living as an oil prospector. https://barryhisblog.blogspot.com/p/archiving-glen-mortons-pages.html