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40,619 published items in this category and its subcategories.

How many legs does a rolling roller really have?
Animal world

How many legs does a rolling roller really have?

The slide - some places called 'centipedes' - are not worms and are not insects. Insects only have six legs, and obviously the mats have more legs than that. So how many…

May 9, 2019
What masks are considered to be standard?
Discover science

What masks are considered to be standard?

A quality mask helps you breathe fresh air even though you live in a place where super air is polluted with all kinds of invisible viruses, bacteria or dust.

May 3, 2019
The greatest explorers in the world
Discover science

The greatest explorers in the world

The achievements of the first great explorers in the world are infinite challenges for mankind to bring people to the mystical and unknown.

May 3, 2019
What is alum?
Discover science

What is alum?

Alum alum also known as alum alum, is the double sulfate salt of potassium and aluminum, has the chemical formula KAl (SO4) 2, also known as potassium alum.

May 3, 2019
10 super abilities of the human body
Discover science

10 super abilities of the human body

The brain stores information with a 300-year video, men can produce milk, muscles can lift tons ... is a mystery about human power.

May 3, 2019