The penultimate prime number before 100. A glitch prime of size 2. A Pythagorean prime (can be expressed as 4k+1). A Chen prime (89+2 is either a prime or a semiprime).
by thealtf4psychic September 02, 2022
Silane is a pyrophoric gas. Its chemical formula is SiH4.
It spontaneously ignites when in contact with air. (SiH4+2O2->SiO2+2H2O)
Commonly produced with the following process:
1. Silicon dioxide is burned with magnesium, forming magnesium silicide. (SiO2+2Mg->Mg2Si+O2)
2. The magnesium silicide is placed into hydrochloric acid, forming silane gas, which ignites as it bubbles out of solution. (Mg2Si+4HCl->2MgCl2+SiH4)
It spontaneously ignites when in contact with air. (SiH4+2O2->SiO2+2H2O)
Commonly produced with the following process:
1. Silicon dioxide is burned with magnesium, forming magnesium silicide. (SiO2+2Mg->Mg2Si+O2)
2. The magnesium silicide is placed into hydrochloric acid, forming silane gas, which ignites as it bubbles out of solution. (Mg2Si+4HCl->2MgCl2+SiH4)
Evelyn: I just made silane gas from household chemicals!
Tom: Nice! Did it explode or ignite?
Evelyn: It popped as it bubbled out. What an interesting gas.
Tom: Nice! Did it explode or ignite?
Evelyn: It popped as it bubbled out. What an interesting gas.
by thealtf4psychic June 01, 2023
This is the biggest SSR (Soviet Socialist Republic) of the Soviet Union, in both size and right. It is abbreviated P.C.F.C.P. (sometimes P.C.Ф.C.P. as the Russian Ф pronounces the same as English F) (originates from Russian form: Российская Советская Федеративная Социалистическая Республика) and R.S.F.S.R. Its modern counterpart is the Russian Federation since 1991.
Jim: I was born on December 11 1991 in the Russian Soviet Federative Socialist Republic, but only for one day. It became Russia the moment I was 1 day old.
by thealtf4psychic July 16, 2021
Comprising of the Paleoproterozoic, Mesoproterozoic and Neoproterozoic Eras, This eon spans from 2.5 billion years ago to 541 million years ago lasting almost 2 billion years.
During the beginning of this eon, cyanobacteria rapidly reproduced and photosynthesized turning a lot of carbon dioxide to oxygen. This oxygen reacted with the iron in the oceans, filling the oceans with iron rust BIFs, turning the oceans blood red. Later, there was no longer enough iron to hold onto the oxygen, and it escaped into the atmosphere. That oxygen formed the ozone layer. Nearly all of the carbon dioxide turned into oxygen, turning earth into a snowball earth.
The snowball earth quickly recovered after 300 million years. Then, supercontinent Columbia formed. For the next billion years, climate remained notably stable. This period of time from 1.8 billion years to 800 million years ago was called "The boring billion". During this period, supercontinent Rodinia formed, but broke apart. The rocks that became exposed sucked up more carbon dioxide from volcanoes, turning earth into a second snowball earth.
After that recovered, the two halves of Rodinia reunited around the South Pole forming supercontinent Pannotia. However, it broke apart during the end of the eon just as animals started to appear, as Laurentia rifted away from the rest of the supercontinent. Finally, the End-Ediacaran extinction event took place to end the eon.
During the beginning of this eon, cyanobacteria rapidly reproduced and photosynthesized turning a lot of carbon dioxide to oxygen. This oxygen reacted with the iron in the oceans, filling the oceans with iron rust BIFs, turning the oceans blood red. Later, there was no longer enough iron to hold onto the oxygen, and it escaped into the atmosphere. That oxygen formed the ozone layer. Nearly all of the carbon dioxide turned into oxygen, turning earth into a snowball earth.
The snowball earth quickly recovered after 300 million years. Then, supercontinent Columbia formed. For the next billion years, climate remained notably stable. This period of time from 1.8 billion years to 800 million years ago was called "The boring billion". During this period, supercontinent Rodinia formed, but broke apart. The rocks that became exposed sucked up more carbon dioxide from volcanoes, turning earth into a second snowball earth.
After that recovered, the two halves of Rodinia reunited around the South Pole forming supercontinent Pannotia. However, it broke apart during the end of the eon just as animals started to appear, as Laurentia rifted away from the rest of the supercontinent. Finally, the End-Ediacaran extinction event took place to end the eon.
Imagine living during the middle of the Proterozoic Eon! There would be no plants, no animals, just water, land and bacteria!
by thealtf4psychic March 30, 2021
Comprising of the Paleozoic, Mesozoic and Cenozoic eras, this eon spans 541 million years from the Cambrian Explosion to today.
During the Paleozoic era, complex life started to appear. It took 100 million years for the aquatic plants and animals to migrate to land. Then, another 130 million years later, giant bugs started to appear. 60 million years later, entire coalfields from the Carboniferous Rainforest Collapse Event were set on fire by volcanic activity, causing the Permian-Triassic extinction. The Mesozoic era had begun.
20 million years later, dinosaurs started to appear. They died altogether during the Cretaceous-Paleogene extinction 66 million years ago beginning the Cenozoic era. The mammals started to dominate land. 60 million years later, the Mediterranean Sea drained up, but quickly refilled due to closure and reopening of the Strait of Gibraltar. 6 million years later, humans finally appeared, ending the story of earth's life as we knew it.
During the Paleozoic era, complex life started to appear. It took 100 million years for the aquatic plants and animals to migrate to land. Then, another 130 million years later, giant bugs started to appear. 60 million years later, entire coalfields from the Carboniferous Rainforest Collapse Event were set on fire by volcanic activity, causing the Permian-Triassic extinction. The Mesozoic era had begun.
20 million years later, dinosaurs started to appear. They died altogether during the Cretaceous-Paleogene extinction 66 million years ago beginning the Cenozoic era. The mammals started to dominate land. 60 million years later, the Mediterranean Sea drained up, but quickly refilled due to closure and reopening of the Strait of Gibraltar. 6 million years later, humans finally appeared, ending the story of earth's life as we knew it.
by thealtf4psychic April 16, 2021