If you have hopes to be an astronaut, don't forget to brush your teeth! It’s true

Ever wonder why astronauts require great teeth? The first reason is the acceleration at which astronauts are flying to get into space. The acceleration forces and vibrations during a flight into space can be extremely strong. During the launch phase, an astronaut has to withstand pressures up to four times their own body weight. Poor dental-fillings teeth could become loose or fall out due to vibration, and the presence of cavities can be painful with the atmospheric pressure changes as well.

- Laika the Dog, The sad story of stray dog who became one of the first animals in space

When the flights are long term, the question of dental care becomes more important. They need to continue taking care of their teeth while living on board of the orbiting laboratory to preparation for their return to surface of the Earth. In 1973, Soviet cosmonaut Yuri Romanenko had a toothache during the 96 day-long Salyut-6 mission. Since that time, dental instruments were added to the emergency medical kit on board.

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When NASA’s Mars Mission Failed For Stupid Reason

A ll human beings make mistakes, and NASA is no exception. It is important to learn from this mistake that highlighted the importance of physical units and how they can affect our real life. This is the story of one of the failed mission of NASA.

The Death of Richard Parker And Cannibalism - Shipwreck Case (1884)

T he English yacht Mignonette was a 19.43 net tonnage, a 52-foot cruiser built in 1867. It was an inshore boat, not made for long voyages. In 1883, she was purchased as a leisure vessel by Australian lawyer John Henry Want. The yacht could only reasonably be transported to Australia by sailing, but she was a small vessel and the prospect of a 24,000-km voyage hampered Want's initial attempts to find a suitable crew. She finally set sail for Sydney from Southampton on 19 May 1884 with a crew of four: Tom Dudley, the captain; Edwin Stephens; Edmund Brooks; and Richard Parker, the cabin boy. Parker was 17 years old and an inexperienced seaman. O n 5 July, the yacht was running before a gale, around 2,600 km northwest of the Cape of Good Hope. Though the weather was by no means extreme and the vessel was not in any difficulties, Dudley gave the order to heave to so that the crew could enjoy a good night's sleep. As the manoeuvre was completed, and Parker was sent below to pr...

Lina Medina - Worlds youngest mother who gave birth at age five

L ina Medina, a Peruvian girl, is the youngest confirmed mother in medical history. She gave birth at the age of 5 years, 7 months and 21 days. Medina was brought to a hospital by her parents at the age of five years due to increasing abdominal size. She was originally thought to have had a tumor, but her doctors determined she was in her seventh month of pregnancy. Dr. Gerardo Lozada took her to Lima, Peru, prior to the surgery to have other specialists confirm that Medina was pregnant.

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