Today, Friday the 20th we had a cyber day. Here is my cyber day assignment ..

5 technological developments of ancient Egyptians

1. sun clocks 
2. water clocks 
3. black ink 
4. modern 365 day calendar 
5. sails

Sun Clocks: Obelisks ( 4 sided monuments) moving shadows formed a kind of sundial, providing Egyptians to split the days into two parts by "indicating noon" They also showed the longest and shortest days of the years. After, when markers were added it helped divide the time. The sun clock were important because they allowed to have a schedule and were able to teach others about the 

Water Clocks were the earliest time keepers that didn't depend on the "observation of celestial bodies". One of the oldest was found in the tomb of clepsydras ("water thief"). A water clock were stone vessels with sloping sides that enabled water to drip into the hole at the bottom. 

Black ink was one of the types of ink and dyes that the ancient Egyptians invented. The depth of the colors were utilized a lot in Egypt. The same colors and inks can and are seen today. The ink helped them  write in hieroglyphs and in hieratic. 

Modern 365 day calendar was invented by the Egyptians. They didn't use the lunar calendar system. They established the calendar with the help of the solar system, the 12 months, 30 days in each month, with 5 extra days. They also founded leap year in the year 238 B.C

Sails helped the Egyptians travel and have efficient ways of getting water to the land.  

The list of importance

1. water clocks 
2. sun clocks 
3. calendar 
4. sails
5. ink