41. Doherty-Sneddon argues, however, that this timescale represents only a general norm. 42. This quasar shows variations of factors of four or more on a timescale of hours. 43. The Purbeckian corresponds with the Tithonian to Berriasian stages of the internationally used geologic timescale . 44. Look at the article Sliding _ timescale . 45. On a geologic timescale , the Willamette Valley has been the site of massive floods. 46. The spectrum of 19 Cephei shows line profile variability on an hourly and daily timescale . 47. It was thus an alternative name for the Early Jurassic epoch of the geologic timescale . 48. From Bastion he discovered the difficulty of running a large deception on a short timescale . 49. Billiard ball model becomes sort of invalid when you're talking about this timescale . 50. Glaxo agrees : " Something like a 20-year timescale is appropriate ."
