Graphene is the lightest and strongest material on Earth. Graphene is even stiffer than diamond. Graphene absorbs only 2.3% of the light reaching it.
A tsunami wave can be 150-250 km long. In 1755, a tsunami wave devastated Lisbon, killing 90,000 people. The tsunami wave created at a great depth of the ocean in the initial phase can travel at speeds of up to 900 km/h.
The largest clouds can be over 18 km thick. Clouds can travel at speeds over 150 km/h. There are different kinds of clouds on every planet in the solar system.
Until 1969, bouncers used leather gloves mainly to protect against the cold. North Korea has the largest stadium in the world today – Rungrado May Day, which can seat 150,000 spectators.
Only 6 jumpers have a personal record of over 18 meters. Christian Taylor crossed the 18-meter barrier the most times, 4 times – 18.11 (2017), 18.06 (2015), 18.04 (2015), 18.02 (2015).
How to fight depression? What is postnatal depression? Which gender is more likely to have depression? What time of year is the most favorable for depression?
What are the symptoms of dementia? Is dementia curable? How to protect yourself against dementia? How is dementia examined?
How are black holes created? Where does the name of the black hole come from? What would happen to a man caught by a black hole?
What are the symptoms of diabetes? How to treat diabetes? How much can a lifestyle change reduce the risk of diabetes?
The universe consists of 23% of dark matter.What is dark matter? Why exactly “dark” matter?
Celiac disease is a genetic, immunological disease for a lifetime. How to diagnose celiac disease? What are the celiac disease?
Why is diarrhea especially dangerous for children? What to use for diarrhea in children? How to protect yourself against diarrhea