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B: 221g S: 443g T: 120g Dneska trénink dost záhul, na tak těžké mrtvoly nejsem zvyklý, ale to se poddá :] jinak, dokončili jsme stojan na dřepy, doteď jsme používali lavici na bench s vysunovacíma nohama, dřepy teď mají svůj svatostánek Dřep - 5x50kg, 5x90kg 2x5 s 110kg, 8x5 s 90kg Good mornings 4x8 s 30kg Výpony 3x15 s 80kg Břicho - sedlehy 4x20 s BW Dřepy mě zaskočily, docela těžké ale natočil sem video, takže po víkendu ho sem hodím, mám jednu sérii s 90kg a jednu se 110, ale tam sem při posledním dřepu zaváhal a udělal krok vpřed, dost sem se lekl.Jinak, tréninkové dny mám takhle po sobě kvůli víkendu, jedu na dovolenou na místo bez posilky, tak sem si to oddělal co nejdřív a o víkendu budu regenerovat :] B: 197g S: 451g T: 75g Dnešní bench byl dost funny - rozesmívání vážně není příjemné a navíc mám problém s pravou rukou, poslední dvě série sem s ní tlačil slaběji, jakoby neměla pořádnou oporu.If we know one dinosaur species A was around 120 million years ago, and its closest relative species B known only 100 million years ago, then species B must have existed 120 million years earlier too as they must have shared an origination time due to the way speciation works – we just haven't found any fossils of it during this 20 million year gap though. What these ghost ranges do, when combined with trees that illustrate the relationships between different organisms, is alter the timings or dates of important events based on exactly how we time-scale the trees and the ghost and true ranges of species. This uncertainty in dating and the methods we use actually has quite important implications for significant events in the evolutionary history of dinosaurs.A team led by Graeme Lloyd of Macquarie University, Australia, recently set out to investigate three questions: They used a cadre of time-scaling methods on a brand new evolutionary tree for all dinosaurs, making this the best test of these questions so far. Whence came thee, dinosaur What was the first dinosaur?To change that, the UCR team turned to a cheap source of silicon -- diatomaceous earth (DE) -- and a more efficient chemical process.DE is an abundant, silicon-rich sedimentary rock that is composed of the fossilized remains of diatoms deposited over millions of years.You’ve seen them in the magazines, on television, in the museums and maybe you’ve even held one in your hands. A question that often arises is “How do scientists determine the age of a dinosaur bone?” That’s what we’ll briefly explore in this month’s article. We know, for instance, that fire is hot, the moon orbits the Earth and chocolate ice cream is much better than plain vanilla.
Disclaimer: I received this book for free through the O’Reilly Blogger program.You might think dating dinosaurs would be an easy task, but in reality it's actually quite difficult.We date dinosaurs based on where we find their fossils, using the ages of the rocks that they're found in.Researchers at the University of California, Riverside's Bourns College of Engineering have developed an inexpensive, energy-efficient way to create silicon-based anodes for lithium-ion batteries from the fossilized remains of single-celled algae called diatoms.The research could lead to the development of ultra-high capacity lithium-ion batteries for electric vehicles and portable electronics. The research was led by Mihri Ozkan, professor of electrical engineering, and Cengiz Ozkan, professor of mechanical engineering.