The compass and the astrolabe made navigation by sea, and therefore exploration, possible.
Advances in technology made these voyages possible. A new kind of ship, the caravel, was stronger built than earlier ships. That is what made the Europeans able to begin exploring foreign lands in the 1400's.
1400 kg/m3
It is not possible to say, the first Trebuchet was thought to have been used by the Mohists in China as early as the 5th Century BC. Later in Byzantium before the 6th Century. An Arab description was available in the 1400's
No
The question does not provide units of measure which are important in answering the question. However, it is likely that the slab is 1400 square feet and that the slab thickness is 3 inches. A cubic yard of concrete is 3 ft by 3 ft by 3 ft, or 27 cubic feet. To solve the problem, you convert the slab size into cubic feet by multiplying the length in feet by the width in feet (to get 1400 square feet) by the thickness of the slab in inches divided by 12 inches per foot or 1400 * 3 / 12 = 350 cubic feet. To convert to cubic yards, divide the 350 cubic feet by 27 cubic ft/cubic yard to get 12.96 cubic yards. So, order 13 yards of concrete.
http://wiki.answers.com/Q/What_technological_improvements_made_exploation_by_sea_possible_in_the_1400"
chicken and alfredo sauce
the printing press
1400 hours = 1400/24 = 58.33... days. Given that a month can have 28 to 31 days, it is not possible to convert the number of days into an exact number of months but it is possible to say that it is a little short of 2 months.
The address of the A.E. Seaman Mineral Museum is: 1400 Townsend Drive Michigan Technological University, Houghton, MI 49931
All of the Above
16% of 1400 = 16% * 1400 = 0.16 * 1400 = 224
30% of 1400= 30% * 1400= 0.3 * 1400= 420420
29% of 1400= 29% * 1400= 0.29 * 1400= 406
80 percent of 1400 = 1120 80% of 1400 = 80% * 1400 = 80%/100% * 1400 = 1120
1400
0.30% of $1400= 0.30% * $1400= 0.003 * $1400= $82.56