Tag Archives: science

Caffeine 101 | National Geographic

(light liquid pouring) (gentle sipping) – [Narrator] For morning coffee to afternoon tea, caffeine is so thoroughly entrenched in our daily routines and has become the worlds most widely used psychoactive substance. Caffeine is a chemical compound that stimulate the central nervous system. It accomplishes this by attaching itself to adenosine receptors in the brain.… Read More »

How Psychology Can Explain the Deadly Medieval Dancing Plagues

♪♪♪ In the year 1518, the city of Strasbourg was struck by a dancing plague. Yes, a dancing plague. And it was deadly. It started with a single woman, but within a month, there were over 400 people dancing in the streets—wildly, uncontrollably, and often to their deaths. Some sources claim that, for at least… Read More »

How the iPhone Tormented the World’s Happiest Nation

Can I show you my fancy bag of phones? Yes. I think I’ve got some good stuff for us. All Nokias. Wanna celebrate the Finnish pride. I got some classics here. That looks familiar. Yeah, we’ve got a few of these. And then I thought you might like this one. This is like… Maybe if… Read More »

Maharashtra drought: This Indian village budgets every drop of water

To check the depth (of groundwater) Subtract the length of the wire overground from its total length The water level is at 18 feet 4 inches VSRT monitors the problems of the village like lack of water, teaching farmers new techniques bringing in water saving techniques like drip irrigation organic farming like bringing down the… Read More »

AIDS 101 | National Geographic

(dramatic music) – [Narrator] About 37 million people around the world are currently living with AIDS making the disease one of the worst pandemics in modern history. AIDS or Acquired Immunodeficiency Syndrome is a disease in which the human immune system is severely impaired. It’s caused by the human immunodeficiency virus or HIV and is… Read More »

The Nightcrawlers – Full Documentary | National Geographic

RAFFY: When you drive around the streets of Manila, I don’t remember by place, landmarks, I remember crime scenes. There was one there and there, there. RAFFY: I have to fight becoming numb. That’s why I go to wakes, to funerals. To I guess know more about these victims. Try to find the story. RAFFY:… Read More »

Dinosaurs 101 | National Geographic

(dramatic music) (roaring) – [Narrator] Probably no other creatures on the planet have struck as much fear and awe in our hearts as the dinosaurs. (roaring) The earliest dinosaurs appeared about 245 million years ago during the Triassic Period. When most of the Earth’s landmasses were still joined together as the super continent Pangaea. Over… Read More »

Plague 101 | National Geographic

– [Narrator] Plague is notorious for causing mass sickness and devastation. But as much tragedy as the disease has caused, it also helped drive crucial scientific and social progress. Plague is an infectious disease caused by the bacterium Yersinia pestis. It mainly affects rodents, and spreads by way of insects. Because of these insect carriers,… Read More »