Hazards of electromagnetic radiation. Over-exposure to certain types of electromagnetic radiation can be harmful. The higher the frequency of the radiation, the more damage it is likely to cause to the body: 1  microwaves cause internal heating of body tissues. 2  infrared radiation is felt as heat and causes skin burns.ver-exposure to certain types of electromagnetic radiation can be harmful. The higher the frequency of the radiation, the more damage it is likely to cause to the body:
Hussain ibn Ali was a 7th century revolutionary leader who made the ultimate sacrifice for social justice in the face of corruption and tyranny. He gave everything he had, including his life, for the honour of those around him. Hussain ibn Ali was born in 620 AD to a family famed for their values of love, honour and peace. Raised by his grandfather Muhammad (the last prophet of Islam), Hussain was known for his integrity, generosity of spirit and blindness to colour and social class.
Ibn Battuta was a Moroccan explorer who traveled extensively throughout the known world. His accounts of his exploits were published in a book known simply as Journey. His travels lasted three decades, during which he visited many parts of Africa, Asia, and Europe. In all, he covered a distance about three times as great as Marco Polo, who lived at about the same time. As such, Ibn Battuta is considered one of the great explorers of the medieval period.