Krista Tippett talks about the beauty and mystery in science and religion and how they go hand-in-hand, not head-to-head.
In the last century humanity has taken gigantic leaps forward in the robotic exploration of the cosmos — not least in the search for habitable worlds and environments that could house life outside of the Earth. The next logical step is for humanity itself to leave the confines of our planet, and take on long-term human exploration of the Solar System. Mars in particular is a key target for future human planetary adventures even though on the face of it, it seems so hostile to human life.
Are sound vibrations and the sounds we hear the same thing? Or are they separate? It depends on your perspective. The tree in the forest may be silent or screaming for some help.
I hypothesize that sound vibrations are separate from what we hear. What we hear is our brains’ interpretation of the information. Sound happens in our minds. As of now there is no evidence to support this idea. But it’s fun to think about. So what do you think? Does the tree make a sound?
You have been predicted — by companies, governments, law enforcement, hospitals, and universities. Their computers say, “I knew you were going to do that!” These institutions are seizing upon the power to predict whether you’re going to click, buy, lie, or die.
In the 1930s journalists from publications like the New York Times and Time magazine would regularly visit Nikola Tesla at his home on the 20th floor of the Hotel Governor Clinton in Manhattan. There the elderly Tesla would regale them with stories of his early days as an inventor and often opined about what was in store for the future.
There are a lot of ways to kill and be killed in the animal kingdom, but only a lucky few use the powers of venom. Not all are closely related, so how did they acquire the same defenses, where did venom come from, and how does it work? And what animals can kill you the most quickly?
Humans drew the short end of the toothbrush when it comes to our pearly whites’ longevity. Other animals such as reptiles and fish frequently lose and replace their teeth by growing new ones, but people are stuck with the same set of mature adult teeth their entire lives. If they lose a tooth–or all 32–dentures are usually the only option.
Although it may sound crazy, many doctors use maggots today to clean wounds of dead and infected tissue. This process, called debridement, is important for preventing the spread of infection in a world of increasing antibiotic resistance. Hank has more details on the marvelous maggot in today’s episode of SciShow.
In this second of two videos looking at ‘How big is a trillion?’ Matt Parker tells you how to pay off one trillion dollars, pounds, Galactic Credits, bitcoins… what ever your currency.
John McGinnis, a 47-year-old composite manufacturer, he taught himself fluid dynamics and aeronautical engineering over twenty years. His conceptual aircraft Synergy could be quieter, cheaper and at more than 40 mpg, up to three times as fuel-efficient.