Being mean to Broccoli
Greg Tucker explains his “treat them mean” approach to broccoli in a bid to extend shelf life. This video also features Gilbert Shama from Loughborough University.
Lectures
How old can we get?
Senescence (from Latin: senescere, meaning “to grow old,” from senex) or biological aging is the endogenous and hereditary process of accumulative changes to molecular and cellular structure disrupting metabolism with the passage of time, resulting in deterioration and death.
Are you dating a psychopath?
Psychopathy guru Kevin Dutton offers some tips on diagnosing potential psychopathy in your mate… and what to do if you find yourself in such a relationship.
404, the story of a page not found
Oops! Nobody wants to see the 404: Page Not Found. But as Renny Gleeson shows us, while he runs through a slideshow of creative and funny 404 pages, every error is really a chance to build a better relationship.
Pavlovian reactions aren’t just for dogs
Dr. Ivan Pavlov’s groundbreaking work revealed that a dog will respond to neutral stimuli, such as a bell, in the same way that it will respond to, say, mouth-watering food. This research is widely applicable beyond a dog’s salivation. Benjamin N. Witts sketches a few situations in which people are conditioned to react in a Pavlovian way, from dating to parenting.
How much money is there on Earth?
Have you ever wondered how much money is there on Earth? Which country has the most and which the least? And why? How do the banks works? Who prints money and set its value? And how does that even work? Take a look on this lecture.
Jetpack rocket science
Jetpacking was awesome fun! Despite the fat lip I had a great time. I think knowing a bit about physics actually helps fly the jetpack. It works on the same principle as a rocket (Newton’s 3rd law) but unlike the shuttle, you don’t carry your own propellant with you. Instead, water is pumped out of the lake by the jetski at up to 60 litres a second. It is then fired out of the nozzles at around 15 m/s creating 1800 N of force, the equivalent of about 150 fire extinguishers. On me this can produce acceleration of about 1.5g’s.
Sleep, Memory and Age
The connection between poor sleep, memory loss and brain deterioration as we grow older has been elusive. But for the first time, scientists at UC Berkeley have found a link between these hallmark maladies of old age. Their discovery opens the door to boosting the quality of sleep in elderly people to improve memory.
25 World War 2 heroes who put their lives on the line
In the midst of the pain, death, and horror of war there are numerous stories of ordinary people stepping up to the plate and making heroic sacrifices for their fellow soldiers and countrymen. Although the names and stories of most of these everyday heroes perish with history, every once in a while, one of those stories becomes legend and is told from generation to generation. These are the stories of 25 World War II heroes who put their lives on the line.
The Science of Lying
Hank gets into the dirty details behind our lying ways – how such behavior evolved, how pathological liars are different from the rest of us, and how scientists are getting better at spotting lies in many situations.
Top 5 Deadliest Substances on Earth
There are natural poisons that lurk in bacteria, plants, and fungi pretty much everywhere, and they’re there for good reasons (according to the organisms that produce them) – but what is it about their chemical make up that makes them so poisonous? How do their toxins attack the human body with such deadly efficiency? Discover the answers to these and other questions as Hank talks about some of the most deadly natural substances in the world.
Txtng is killing language. JK!!!
Does texting mean the death of good writing skills? John McWhorter posits that there’s much more to texting — linguistically, culturally — than it seems, and it’s all good news.
Horsehead sculpted in dust
This year marks the 23rd year of observing for the Hubble Space Telescope. Alongside cutting-edge science, the orbiting observatory has produced countless stunning astronomical images. Some of the most striking and beautiful subjects of Hubble’s images have been nebulae — vast interstellar clouds of gas and dust.
Ferrofluid – the magnetic liquid!
Materials scientist Mark Miodownik demonstrates some of the weird properties of ferrofluid. This liquid is literally ‘dripping with magnetism’, containing a suspension of ferromagnetic nanoparticles that make the liquid responsive to external magnetic fields, generating unusual patterns, shapes and motion.
Gold Bullion Vault
The Bank of England protects about £197 billion ($315bn) worth of gold, according to the mostly recently published figures.
