Quadrant I : (+, +) Quadrant II : (-, +) Quadrant III : (-, -) Quadrant IV : (+, -)
Quadrant 3 Quadrant 4 Quadrant 2 Quadrant 1
There's a mnemonic for this: All Students Take Calculus. Starting in the first quadrant, and moving counterclockwise until the last, give each quadrant the first letter of thos words in order. A represents all 3, s represents sine, t represents tangent, and c represents cosine. If the letter appears in a quadrant, it is positive there. If not, it is negative there.In quadrant 2, only sine is positive.
To read an astrolabe, level the plum bob, the degree scale, the altitude, and the protractor.
The fourth quadrant.
Amerigo used the Astrolabe and the Quadrant
the compass, the astrolabe, the quadrant and the lead.
La Salle used a quadrant, an astrolabe, a sea chart, and a compass. Hope this helps!
the instruments in navigation are gps's, kamals, sextants, cross staff, back staff, mariners astrolabe, quadrant, and octants :)
right quadrant
Renaissance explorers used instruments such as the astrolabe, quadrant, compass, and cross-staff for navigation. These tools helped them to determine their position at sea by measuring the position of celestial objects and the horizon. Additionally, they used charts and maps to plot their course and track their progress.
A quadrant was (and still is) an instrument that is used to measure angles up to 90°. It was first used by Ptolemy, the Greco-Roman mathematician, astronomer, geographer and astrologer. He introduced the quadrant as a better kind astrolabe and instrument used by astrologers and navigators locating and predicting the positions of the stars, determining local time and local latitude and for surveying and triangulation.
Navigational instrument or tool such as a sextant or astrolabe is used to measure the angle between a celestial body (sun or stars) and the horizon. This information helps determine the ship's position on a map by calculating latitude and longitude coordinates.
what is the instrument used by Christopher Columbus use to measure speed
Ancient mariners used tools called an astrolabe, a sextant, and a quadrant. These instruments were used in conjunction with celestial bodies, sunrises and sunsets.
The compass and the astrolabe
To determine the altitude of an object in the sky using an astrolabe, you would align the sighting arm with the object. Then, you would read the degree scale on the astrolabe where the sighting arm intersects it. This reading would give you the altitude of the object above the horizon.