FunTrivia Sci / Tech Mix: Vol 23 Quiz

Answer: a sneeze

Coughs have been recorded at up to 50 mph. Blood flows at a more leisurely 5 mph, normally.

Question by player smpdit

Answer: Cauterizing

Cauterization was a painful but necessary procedure in the past. Amputations were commonly treated in this manner. This would not only seal the wound but help with infection. Battlefield wounds were treated in this manner. Fortunately medical science has less painful ways to treat wounds. Cauterization is used for wart removal and chemical cauterization is commonly used for persistent nosebleeds.

Question by player oldstuff28

Answer: dead organic matter

Detritivores, such as worms, eat detritus which means dead leaves, plants or animals. They are vital components in the circle of life - recycling essential nutrients.

Question by player Lsisters

Answer: Thermodynamics

Thermodynamics is a scientific discipline that seeks to understand things such as temperature and the more abstract notion of heat and how they tie in to the broader concepts of energy and work. The zeroth law is one of the laws of thermodynamics and it states that "If system A is in thermal equilibrium with system C, and system B is in thermal equilibrium with system C, then system A is in thermal equilibrium with system B." (phy.duke.edu)

Question by player jonnowales

Answer: Bumps on the skull

Phrenology was very popular during the first half of the 19th century, and continued to have its adherents into the early 20th century. A German physician, Franz Joseph Gall, postulated that the human brain was divided into 27 areas, each controlling a different trait.

The skull was supposed to reflect the degree of development of each of these areas. By feeling the skull, he claimed he could tell if a person had musical talent, for instance, or if he possessed criminal tendencies. Having one's head "read" by practitioners of phrenology was once a popular pastime.

By the middle of the 19th century, phrenology had been discredited as a scientific theory.

Question by player daver852

Answer: Cobalt

Cobalt is a hard and lustrous greyish metal. It is a chemical element with atomic number 27.

Question by player sssovan

Answer: 4

Since you have a 25% chance to guess each question correctly, this translates to an average of 3.75 questions correct on a 15 question quiz. Since this number is closer to 4 than to 3, the most probable outcome is 4 correct answers.

Question by player WesleyCrusher

Answer: birds

The theropod dinosaur hypothesis posits that birds are direct descendants of dinosaurs, and that they were originated "from the ground up"; that is, wings became a feature of birds from dinosaurs that lived on the ground. The basal archosaur hypothesis posits that birds and dinosaurs shared a similar reptilian ancestor, but that birds did not come directly from dinosaurs.

This hypothesis is "from the trees down", believing that the relative of these two groups lived in the trees, where wings were vital for gliding/flying, and then later came down to live on the land.

Question by player trident

Answer: Melting icebergs

This type of sound occurs when the pressure of the air bubbles is released during the melting of glacier ice. The sound is similar to the sizzle made by soft drinks or soda water but is significantly louder, like popping. An alternative term is "ice sizzle".

Question by player lout62001

Answer: Neutron star

The discovery of pulsars by Jocelyn Bell Burnell was the first observation to suggest that neutron stars exist. A neutron star is formed when a giant star, with a previous mass of ten times to twenty nine times the mass of the sun, collapses. They have a very high rate of rotation, resulting in a very high magnetic field.

A neutron star is overwhelmingly composed of neutrons.

Question by player angikar