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Luna 10 (E-6S series) was a 1966 Soviet Luna program, robotic spacecraft mission, also called Lunik 10. It was the first artificial satellite of the Moon.

Mariner 4 was the fourth in a series of spacecraft intended for planetary exploration in a flyby mode. It was designed to conduct close-up scientific observations of Mars and to transmit these observations to Earth.

Luna 2 (E-1A series) or Lunik 2 was the second of the Soviet Union’s Luna programme spacecraft launched to the Moon. It was the first spacecraft to reach the surface of the Moon, and the first man-made object to land on another celestial body. On September 13, 1959, it hit the Moon’s surface east of Mare Imbrium near the craters Aristides, Archimedes, and Autolycus.

The refractive index or index of refraction of a material is a dimensionless number that describes how fast light propagates through the material. It is defined as where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

Refractive Index

Vaccum-1
Ice-1.31

Water-1.33

Diamond-2.42

Cisplatin is a type of chemotherapy drug. Specifically, it is part of a class of drugs known as platinum-containing compounds, which belong in the larger group of alkylating agents. Cisplatin works by interfering with the process of cell division, destroying cancer cells and slowing or stopping the spread of cancer.

Cobalt Nitrate- Red Brown

Cobalt Chloride- Deep Blue

Mangaeese dioxide- Black

Copper Chloride- Blue

Phytic acid is a unique natural substance found in plant seeds. It has received considerable attention due to its effects on mineral absorption. Phytic acid impairs the absorption of iron, zinc and calcium and may promote mineral deficiencies Therefore, it is often referred to as an anti-nutrient.

Pepsin is produced in the stomach and is one of the main digestive enzymes in the digestive systems of humans and many other animals, where it helps digest the proteins in food.

An electroencephalogram (EEG) is a test that records electrical patterns in your brain. The test is used to help diagnose conditions such as seizures, epilepsy, head injuries, dizziness, headaches, brain tumors and sleeping problems. It can also be used to confirm brain death

There are 18 numbered groups in the periodic table, and the f-block columns (between groups 3 and 4) are not numbered. The elements in a group have similar physical or chemical characteristics of the outermost electron shells of their atoms

The Partial Test Ban Treaty (PTBT) is the abbreviated name of the 1963 Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space and Under Water, which prohibited all test detonations of nuclear weapons except for those conducted underground. It is also abbreviated as the Limited Test Ban Treaty (LTBT) and Nuclear Test Ban Treaty (NTBT), though the latter may also refer to the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which succeeded the PTBT for ratifying parties.

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