The Discovery of the Wollemi Pine. The Wollemi pine was a critically endangered species when it was discovered by Dave Noble in 1994, and its exact location in the Wollemi National Park remains a closely guarded secret.The botanist Carrick Chambers stated that the discovery was: the equivalent of finding a small dinosaur alive on earth.The Wollemi pine evolved around 140 million years ago, when Australia was part of a super continent called Gondwana, which linked Australia, New Guinea and Antarctica.The arrival of the Wollemi pine coincided with the first flowering plants, and the extinction of the dinosaurs.he botanist Carrick Chambers stated that the discovery was: the equivalent of finding a small dinosaur alive on earth. The Wollemi pine evolved around 140 million years ago, when Australia was part of a super continent called Gondwana, which linked Australia, New Guinea and Antarctica.
Blu-ray disks, however, use a combination of silicon and copper which is bonded during the burning process, this alloy is much more resilient than the organic dye. Manufacturers claim a life span from 100 up to 150 years for Blu-ray disks.â. â = However, these media don't exist long enough yet to confirm or reject those claims. So at the moment, it's about as long as the oldest working DVD/BD is still working. These claims are made assuming the disks are stored properly.
How Long Should a Swimming Pool Liner Last? Vinyl liners for in-ground pools tend to last 8 to 12 years, on average, although some might require replacement after just 5 years and others will make it to 15 or 20. For above-ground pools, which are more exposed, plan on 6 to 10 years. Why such variation in lifespan? Well, there are many factors that affect how long a liner will last, including the quality of the liner, sun exposure, how often the pool is used, how well it has been maintained and where you live.