Lapan: Badai Matahari Terjadi Antara 2012-2015

Film fiksi ilmiah '2012' yang menceritakan tentang terjadinya badai matahari (flare) bukan isapan jempol belaka. Flare diperkirakan akan terjadi antara tahun 2012-2015. Namun, tak serta merta hal itu melenyapkan peradaban dunia.

"Lapan memperkirakan puncak aktivitas matahari akan terjadi antara 2012 hingga 2015. Pada puncak siklusnya, aktivitas matahari akan tinggi dan terjadi badai matahari," ujar Kabag Humas Lapan Elly Kuntjahyowati dalam rilis yang diterima detikcom, Kamis (4/3/2010).

Second (Detik)

English Version

The second (SI symbol: s), sometimes abbreviated sec., is the name of a unit of time, and is the International System of Units (SI) base unit of time. It may be measured using a clock.

Early definitions of the second were based on the motion of the earth: 24 hours in a day meant that the second could be defined as 1⁄86 400 of the average time required for the earth to complete one rotation about its axis. However, nineteenth- and twentieth-century astronomical observations revealed that this average time is lengthening, and thus the motion of the earth is no longer considered a suitable standard for definition. With the advent of atomic clocks, it became feasible to define the second based on fundamental properties of nature. Since 1967, the second has been defined to be