Lord Kelvin and the Age-of-the-Earth Debate: A Dramatization

This is a dramatization of a fictitious debate about the age of the earth that takes place in the Royal Institution, London, England, in the year 1872. The debate is among Sir William Thomson (later Kelvin), T.H. Huxley (Darwin's Bulldog), Sir Charles Lyell, and Hermann von Helmholtz. In 1862 Thomson published his celebrated and widely studied The Secular Cooling of the Earth that raised the post-Darwinian debate of the age of the earth above the level of popular controversy. He entered the debate with all the arrogance of a newly established science of the century, namely the recently drafted laws of thermodynamics. The debate is partly based on a lively exchange of comments and arguments that occurred between T.H. Huxley and William Thomson, starting in 1868, when Thomson addressed the Glasgow Geological Society. This long public discussion also involved the ideas and the work of geologist Charles Lyell and those of the celebrated German physicist Hermann von Helmholtz. The confrontation is between the unyielding physicists and the insecure biologists and geologists who required a much longer time for the age of the earth than the physicists were prepared to give them. However, the debate ends on a conciliatory note, suggesting that perhaps Sir William's storehouse of creation may contain a hereto undiscovered source of energy that is more bountiful than gravitational energy.     

Deutsches Museum,München‐‐Science,Technology and History as an Educational Challenge

Difficulties in reading comprehension of physics texts by college students were investigated. A strategy was developed to improve students’ reading comprehension. Students were taught the skill of formulating clear questions on textual material. The strategy stimulated students’ awareness of their difficulties in reading comprehension and could be used by students as a self‐monitoring technique to improve their reading comprehension.     

Follow‐up of a Cohort of Risk Children from Birth into Adolescence‐‐The Rostock Longitudinal Study

THE ROSTOCK Longitudinal Study commenced in 1970 and has prospectively monitored the development of children identified in the perinatal period as “at risk”. The aims of the study are to identify some of the factors contributing to inter‐individual differences in their development and to evaluate the prognostic significance of these factors. The results reported in the present paper underscore the limited prognostic value of single risk factors, the diminishing impact of organic perinatal risk factors over time, and the increasing importance of the psychosocial context in influencing developmental outcomes in childhood and adolescence.     

Historical and Pedagogical Perspectives on Entertainment,Popularization and Learning in Science

This is an introduction to the following papers of a conference: From Itinerant Lecturers of the 18th Century to Popularizing Science for the 21st Century.