Urine Glucose Test Strips Experiment

be added a second "extra" to 2008

Circular 36, the international service of Earth's rotation (IERS by its initials in English), notes that the December 31, 2008, at 23h 59m 59s, a second call shall be inserted "positive leap" on the scale of Coordinated Universal Time (UTC).

Andrés Eloy Martinez Rojas El Universal Tuesday November 18, 2008
On December 31, 2008, will have an extra second to atomic clocks can be synchronized with the rotation of the Earth, which decreases imperceptibly at all times, due to forces tides exerted by the Moon. According to this Circular, shall be inserted a second call "positive leap" in the scale of Coordinated Universal Time (UTC).

This UTC clocks, which will signal the arrival of the new year should mark this unusual reading: 23h 59m 60s, instead of the traditional 23h 59m 59s. The "second" will be officially added in Mexico, and will take effect on the three "time zones", which are used in Mexico, according to the time difference that separates the universal time, so for example for the central area, the change is made to the 17h 59m 60s.

The reason I used "leap seconds", is currently measures time with stable atomic clocks (International Atomic Time, TAI or International Atomic Time), plus the Earth's rotation has been slowing gradually, so the day has become longer, at a rate of 1.7 milliseconds per century, mainly due to tidal forces caused by Luna.

the present period of rotation of the Earth was much shorter in the past, and will be longer in the future. It was then a rotation period of six hours, to the early Earth, and that of 4 billion years. Night and day were happening every three hours, more or less on the violent T ierra, devoid of Luna. More once formed the Moon in this gigantic collision severity, has been slowing down the Earth's rotation, until the 24 hours that we know today, and continues to do so, at which the clocks should be set such as will be the next December 31.