The Singing Ringing Tree is aptly named. A 3-meter-tall, wind-powered musical sculpture made of galvanized steel pipes, it stands high above the English town of Burnley. The pipes swirl to form the shape of a tree bent and blown by the wind, and produce an eerie, melodious hum as the constant wind o...

Altocumulus Standing Lenticular Clouds: When sufficient moisture is present above mountain-top level, ACSL clouds develop within the crest of these mountain waves where the air is rising. ACSL clouds are continually developing and dissipating in the vicinity of the wave's crest and immediately dow...

Since the beginning of the epidemic, more than 70 million people have been infected with the HIV virus and about 35 million people have died of HIV. Globally, 36.7 million [30.8–42.9 million] people were living with HIV at the end of 2016. An estimated 0.8% [0.7-0.9%] of adults aged 15–49 years worl

US President Barack Obama has unveiled what he called "the biggest, most important step we have ever taken" in tackling climate change. The aim of the revised Clean Power Plan is to cut greenhouse gas emissions from US power stations by nearly a third within 15 years. The measures will place signifi...

The Stand is Stephen King’s apocalyptic vision of a world decimated by plague and embroiled in an elemental struggle between good and evil. The fate of mankind rests on the frail shoulders of the 108-year-old Mother Abagail (Whoopi Goldberg) and a handful of survivors. Their worst nightmares are emb

There's a medical marijuana plant that has parents moving to Colorado to help their children. The strain of marijuana is called "Charlotte's Web," and it's named after a young girl in Colorado previously reported on by CBS4. The strain, converted into oil, has drastically changed Charlotte Figi's li...

This scene shows several activated T cells attacking rapidly dividing cancer cells of a growing tumor. The activation and proliferation of cytotoxic T cells are critical for immune-mediated tumor destruction. Recent scientific advances have reignited interest in the area of cancer immunotherapy.

The argument is overwhelming that there is a federal constitutional right to marry a person that you love. And 36 states have held that. Seventy percent of the American people now live in a state that has constitutional or statutory marriage equality. And the history of the Supreme Court is a histor

Stay Home Vogue - Vogue Corona Parody by Chris Mann.

The mechanisms of evolution explained in one video. The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today. Unfortunately, evolution is often misunderstood...