نتایج جستجو برای: bustling billion

تعداد نتایج: 22692  

Sven Littkowski Uwe-M. Troppenz,

The authors show that the Mesoproterozoic (1.6-1.0 bn year before present) was no “boring billion” but a “bustling billion” - not only with Stromatolites and their apex in the Calymmian and Ectasian but also with the presence of multicellular organisms. To make it visible a graphical reconstruction was created. For a long time, it was assumed that there existed no noteworthy biosphere on Earth ...

Journal: :Medical Gas Research 2013

2013
Zhouheng Ye Rongjia Zhang Xuejun Sun

Argon is a noble gas in group 18 of the periodic table. Certificated to exist in air atmosphere merely one century ago, discovery of argon shows interesting stories of researching and exploring. It was assumed to have no chemical activity. However, argon indeed present its biological effect on mammals. Narcotic effect of argon in diving operation and neur-protective function of argon in cerebra...

Journal: :The Journal of New Zealand Studies 2021

Journal: :Publications of the Astronomical Society of the Pacific 2022

Fast Radio Bursts (FRBs) are bright millisecond-duration radio transients that appear about 1,000 times per day, all-sky, for a fluence threshold 5 Jy ms at 600 MHz. The FRB radio-emission physics and the compact objects involved in these events subjects of intense active debate. To better constrain source models, Bustling Universe Survey Telescope Taiwan (BURSTT) is optimized to discover local...

Journal: :Nature 1971

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