Casablanca 卡萨布兰卡

Marrakesh 马拉喀什

Sahara Desert 撒哈拉沙漠

From Marrakesh, I took a 3 days and 2 nights magnificent tour to the Sahara Desert. It was a long 2 days drive from the city to the border of the desert.

We stopover for a mountain view. We also visited the mountain pottery making place.

We had another stopover at a cafe for lunch .

We had dinner in the hotel and stayed there for a night. I shared the room with another 2 people.

The next day, we visited the carpet making place.

We proceeded for more sightseeing.

Aït Benhaddou (Arabic: آيت بن حدّو) is a historic ighrem or ksar (fortified village) along the former caravan route between the Sahara and Marrakesh in Morocco. It is considered a great example of Moroccan earthen clay architecture and has been a UNESCO World Heritage Site since 1987. We visited this place.

Movies like The Mummy and Gladiator are shot here.

Finally, we reached the border of the desert in the late afternoon.

We rode on the camel into the desert for about one and the half hour before we reached the camp side at about 8pm. Dinner was well prepared for us. We were entertained by the locals with songs and dances under a wonderful Arabic starry night. We left the desert in the next morning at about 6am.

Tanger 丹吉尔

Morocco 摩洛哥

Learn about the Roman Number System

The Roman number system is based on seven letters, all of which are assigned with specific values. These seven letters, with their Hindu-Arabic number equivalents, are:

 I (1)       V (5)      X (10)      L (50)      C (100)      D (500)      M (1000)

There are a few rules in the Roman number system.

Rule 1: When a letter is repeated, its value is repeated.
Examples : I = 1, II = 2, III = 3          X = 10, XX = 20          CCC = 300

Rule 2: When a letter follows a letter of greater value, its value is added to the greater value.
Examples : VI = 6 (5+1)       XV = 15 (10+5)        LX = 60 (50+10)        DC = 600 (500+100)

To write 70 in roman numerals, we just need to add XX to L (10+10+50). So, 70 will therefore be written as LXX. To write 800, just add CCC to D (100+100+100+500). In this case, 800 is written as DCCC.

Rule 3: When a letter precedes a letter of greater values, its value is subtracted from the greater value.
Examples : IV = 4 (5-1)                       IX = 9 (10-1)                      XL = 40 (50-10)
                   XC = 90 (100-10)             CD = 400 (500-100)

The smaller value I is in front of V, means subtract 1 from 5 to get 4. In the same way, X is in front of the L reduces 50 by 10 to get 40. In like manner, X is in front of C means 100 less 10 and CD denotes 500 less 100.

Note: Generally, the symbols are not repeated more than three times to denote a number. To show the number 40, we would need to write XL (50-10) and not XXXX. (10+10+10+10). As for 4, it is usually written as IV (5-1) and not IIII (1+1+1+1).

Rule 4: A horizontal bar over a letter or letters indicates that the value given to the letter or letters is to be increased one thousand times.
Examples : MCD = 1,400 (1000+ 500-100).
____
MCD
= 1,400,000 (1,000 times of 1,400)

Summary

VII = 7          XI = 11          XIV = 14         XVIII = 18         XXII = 22      XXXVII = 37
XLI = 41       LXII = 62       CXIII = 113     CCX = 210      MCM = 1,900

__                              __                               ______    
XICCC = 11,300       CLXX = 150,020         MCMV = 1,905,000  

 __                         __
 M1,000,000       XCC = 10,200

Source : “Arithmetic Made Simple – Revised Edition” by A.P. Sperling and Samuel D. Levison. Revised by Robert R Belge, Department of Electrical and Computer Engineering, Syracuse University. Published by Doubleday, a division of Bantam Doubleday Dell Publishing Group, Inc.