When was the ball-point pen invented by Ladislao Biro?
Who discovered the x-rays?
Which invention is Otto Hahn famous for?
Bacteria was first discovered by:
Who designed a counter for detecting radioactivity?
Who of these inventors registered nearly 1 100 patents:
Who is known as "Father of Geometry"?
The diesel engine was invented by:
What invention was Alec Jeffreys famous for?
Who among the following developed "World Wide Web"?B
Створюйте онлайн-тести
для контролю знань і залучення учнів
до активної роботи у класі та вдома