The most audible noise ever recorded
- On 27 August 1888, the Krakato volcano exploded in the Dutch East Indies in present-day Indonesia. The explosion was heard over 5,000 kilometres away, in the thirteenth part of the planet or, in the same way, in 7.7 per cent of the earth ' s surface.
The impact of the hum affected air pressure and was recorded by a barometer from a gas factory in Batavia (now Jakarta). Mercury was 6.5 centimeters, which means that the noise was 172 decibels. A pneumatic hammer emits a 100 decibels sound and a 150 reaction engine if the sound at source is measured. But the gas factory was about 160 kilometers from Krakato.
For pedagogical or methodological reasons, historians tend to fragment and divide historical periods of the past into deadlines. There are traditional times that we all know (Prehistory, Antiquity, Middle Ages, Modern and Contemporary Ages), but also several sub-ages.
These... [+]
Copenhagen, 18 December 1974 At 12 noon a ferry arrived at the port, from where a group of about 100 Santa Claus landed. They brought a gigantic geese with them. The idea was to make a kind of “Trojan Goose” and, upon reaching the city, to pull the white beard costumes... [+]
Tennessee (United States), 1820. The slave Nathan Green is born, known as Nearest Uncle or Nearest Uncle. We do not know exactly when he was born and, in general, we have very little data about him until 1863, when he achieved emancipation. We know that in the late 1850s Dan... [+]
The Centre Tricontinental has described the historical resistance of the Congolese in the dossier The Congolese Fight for Their Own Wealth (the Congolese people struggle for their wealth) (July 2024, No. 77). During the colonialism, the panic among the peasants by the Force... [+]
New York, 1960. At a UN meeting, Nigeria’s Foreign Minister and UN ambassador Jaja Wachucu slept. Nigeria had just achieved independence on 1 October. Therefore, Wachuku became the first UN representative in Nigeria and had just taken office.
In contradiction to the... [+]
Today, 50 years ago, the labor movement of the Basque Country wrote a very important chapter in its history. In Hegoalde, some 200,000 workers went on a general strike in protest against the Franco regime, which lasted two months. This mobilization made it clear that the... [+]