books roentgen rays
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# Roentgen's discovery of X-rays
# Why is an X-ray called a Roentgen ray?
# What is gamma rays?
# Who invented rays?
# world roentgen
# Scientist Wilhelm Roentgen
# The birth of the world Roentgen
# Jens Roentgen
# Experience the world Roentgen
# Rays from the rhetoric of Imam al-Sadiq
# After the dye rays
# x-rays
# Avoid ultraviolet rays
# psychological rays
# enchanting laser rays
# X-rays and some of their applications
# rays of death
# rays of light
# The uses of ultraviolet rays
# What are X-rays
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أشعة رونتجن (Info)
أشِعّة رونْتجِن:- إشاعاتٌ كَهرمغنطيسية أطوالها المَوجِيَّةُ بين 10 ^-7 و 10^-9 سم و ذات طول موجه أقصر بكثير من موجات الضوء، ولها القدرة على اختراق الأجسام الصلبة أو السميكة (مكنز مجمع بيرزيت)
