HOST Semester One

Chronometer

________ was invented, and then accurate timekeeping was there to use the sextant.

Astrolabe

Used measurements of stars and time to find longitude and latitude (especially at sea), not very accurate but gave users a good sense of where they were.

Tare

Setting a scale to zero (Can be used to set items to zero so that they are not counted in the measurement)

Aristocrat

Inherits money, title, and power.

Weights and Measures

Standard units that tell you how much you have of something.

Concave

________- Slightly dish- shaped (Like a dent)

Astrology

Trying to predict the future and personalities through star position.

Technology

Designing tools to solve problems.

Eratosthenes

276 B.C.E, head librarian at the library of Alexandria, Ptolemy.

Optics

The technology of seeing things (HOST def .)

Investigator

________ addresses consumer complaints.

Stonehenge

Giant stone structure, tracks solstices and served as a burial ground.

Contaminant

A something in a substance that makes it ________ (Not pure)

Net

________- Total amount after something is subtracted from Gross (________ Worth)

Sextant

Can be used to find longitude/latitude or the time with advanced calculations. Much more accurate than the astrolabe, but needed more advanced calculations.

Glass

Silica melted into a transparent material, often from sand with the contaminants removed.

Resources

Objects/Talents to use for practical purposes.

Metric System

A common measurement system almost used everywhere.

Tertiary Effect

Even larger changes caused by earlier sets of changes.

Vernal Equinox

First day of Spring, day /night same length.

European army officers

________ were almost always aristocrats and did not always know what they were doing.

Rectilinear Propagation of Light

Light always travels in a straight line.

Paleolithic

Old Stone Age

Neolithic

New Stone Age

Equator

The line that splits the Earth into the Northern and Southern hemisphere.

Metrology

The study of measurement

Periscope

A device equipped with mirrors to allow to see above or below obstacles.

Prism

Solid geometric figure that reflects all light.

Chronometer

Accurate timekeeping device that could be used at sea

Aristocrat

Inherits money, title, and power

Technology

Designing tools to solve problems

Resources

Objects/Talents to use for practical purposes

Primary Effect

First, most immediate change caused by an event

Secondary Effect

Bigger changes caused by the first set of changes

Tertiary Effect

Even larger changes caused by earlier sets of changes

Idea

Imagining something that could be

Tare

Setting a scale to zero (Can be used to set items to zero so that they are not counted in the measurement)

Gross

Total Amount

Net

Total amount after something is subtracted from Gross (Net Worth)

Weights and Measures

Standard units that tell you how much you have of something

Metric System

A common measurement system almost used everywhere

Smoot

Height/length of Oliver R. Smoot, 5ft 7in

Optics

The technology of seeing things (HOST def.)

Stonehenge

Giant stone structure, tracks solstices and served as a burial ground

Astrolabe

Used measurements of stars to find longitude and latitude (especially at sea)

Sextant

Can be used to find longitude/latitude or the time with advanced calculations

Concave

Slightly dish-shaped (Like a dent)

Convex

Slightly bump-shaped

Rectilinear Propagation of Light

Light always travels in a straight line

Summer Solstice (Midsummer)

Longest day, shortest night (June 21), beginning of Summer

Winter Solstice (Yule)

Shortest day, longest night (December 21), beginning of Winter

Autumnal Equinox

First day of Autumn, day/night same length

Astronomy

Study of stars

Astrology

Trying to predict the future and personalities through star position

Eratosthenes

276 B.C.E, head librarian at the library of Alexandria, Ptolemy

Primary Effect of the Sextant

Users know where they were

Secondary Effect of the Sextant

Time was needed to use the sextant, which started a motion to invent an accurate clock that could work at sea

Tertiary Effect of the Sextant

Royal Naval Observatory, science/math linked to Navy

GMT

Greenwich Mean Time

Lenses

A clear piece of glass or plastic that changes the focus of an image

Primary Effect of Lenses

Images could be made to look larger or closer

Secondary Effect of Lenses

Grinding lenses was invented, or making lenses concave or convex

Tertiary Effect of Lenses

Important lens inventions were invented (Eyeglasses, binoculars, telescope, microscope, contact lenses)

Contaminant

A something in a substance that makes it contaminated (Not pure)

Glass

Silica melted into a transparent material, often from sand with the contaminants removed