Prior to the discovery of nociceptors in 1906, scientists believed that animals were like mechanical devices that transformed the energy of sensory stimuli into motor responses. Pain is one of those stimulated reactions, but it is unlike other sensations. What is the purpose of pain?
Erm…No. Not Mona Lisa! (Rolls eyes.) Think again!! This is LISA – the Lisa Pathfinder satellite, the key element for a grand new project: a space-based gravitational observatory.
They are made from assemblies of multiple elements fashioned from composite materials, like metals or plastics. And they promise to revolutionise the way we look at things.
Everything is connected. And so it is in the human body too. Everything in the human body is connected. No doubt that all your organs – heart, liver, lungs – work as one to keep you alive and as close as possible to a healthy state.
The World population has grown to 7 billion, and it is expected to reach over 9 billion by 2050. In the long-term, this growth is unsustainable, as vital resources are becoming increasingly depleted and humanity faces a number of threats to its continued expansion. Many believe that scientists will solve these problems with new technology. Are humans causing the sixth mass extinction? What is the reality?
There is a side of us that is not unique to our own species. Evil. Why? How did it start? The first time. Asking why evil came into existence is a valid question. Evil behaviours are categorised into four distinct groups. Of course, it gets pretty dark. But what is “Evil”?
There is one essential difference between living things and inanimate clumps of carbon atoms. From an all-physical point of view, the former tend to be so much better at capturing energy from their environment and dissipating that energy as heat. At MIT, Jeremy England derived a mathematical formula that he believes explains this capacity.
Once a chic resort on the Bay of Naples, Herculaneum was favoured by the finest of Roman’s elite society, who spent the hot Italian summers there… until a catastrophe struck one afternoon in 79 AD. The Villa dei Papiri, excavated centuries later, was found to contain the only library to have survived from the Classical World – a unique cultural treasure, which the eruption of Mount Vesuvius nearly destroyed, and yet preserved all at once. How do you read what is essentially a charred book?
Plant life is one of Nature’s miracles. Imagine being a plant and almost all you will ever need to keep on striving is sheer sunlight. In green plants, both photosynthesis and aerobic respiration occur. It’s a lot like the way in which the human body breaks down food into fuel that it can store. Essentially, using energy from the Sun, a plant can transform carbon dioxide CO2 and water into glucose and oxygen…
You know how when you throw a rock into a pool, that makes ripples in the water? And how Einstein once upon a time predicted that the very mass of stars and planets should warp spacetime? Although we have had a justified inkling that Einstein was right for quite some time, we had never before detected such a phenomenon. Until THIS happened…
Most of us are familiar with the idea that our bodies need calcium. And calcium is indeed the key element in our bones. Calcium is the most abundant metal in the human body – and those of animals too. The fifth most abundant element on Earth and our World’s chosen architectural building block. Yes, calcium is a metal. Do we really appreciate its true value?
We, humans, have driven environmental changes on a scale that is unique in Earth’s history. Human-driven biological, chemical and physical changes to the Earth’s system are so great, rapid and distinct that they may characterise an entirely new epoch – The Anthropocene.
♫ Spaceman, I always wanted you to go into space, man! ♫
After nearly five hours in space, British astronaut Tim Peake completed his first spacewalk, at 17:31 GMT on Friday 15 January. Intended to last over six hours, the space walk was cut short after his US colleague Tim Kopra reported a water leak in his helmet.
Just like buses, it seems. But even rarer and a damn sight more exciting to be honest. Ooohoo!!! Out with your old Science books!! HeL-LOOooo elements 113… 115, 117 and 118!!
Already this article is beginning to sound like one of those sempiternal quizzes you so often get on social media… but it actually shows how science reality connects. Are you having a scientific identity crisis? Continue reading Lateral Thinking in Science – Who Are You?→
Finches in the Galápagos Islands are being threatened by a parasitic fly that attacks their young, placing the same species of birds that helped Charles Darwin refine his theory of evolution in danger of extinction. But the authors of a new study say that human intervention could alleviate the risk.
There is a place on Earth where lightning storms last forever. We are at Catatumbo, in Venezuela. And this year, Catatumbo was approved for inclusion in the Guinness Book of World Records, as the place in the World with the most lightning bolts per square kilometre each year at 250. What causes such a powerful storm to develop in the same spot, up to 300 nights a year?
Do you feel overwhelmed with the amount of information you have to deal with? Do you spend time drawing up a shopping list, only to forget it on the kitchen table when you leave the house? I know I do. In the words of Homer Simpson: “Every time I learn something new, it pushes some old stuff out of my brain.” Don’t worry! Scientists think that it is perfectly normal, and even an essential part of the brain’s learning process.
Goofball, candy, ice, crack, snow, weasel dust, Belushi, Charlie… High in the Andes of South America, Erythroxylum coca grows as a shrub. For 2,500 years at least, its leaves have been known and used for their stimulant properties. Over 5 million people use cocaine and its derivatives in the United States alone.
The days of Professor Challenger are here. This week, scientists have set out to drill deeper into the Earth’s mantle than has ever been done before. This time, let us hope the World will not scream!
Better than the A-Team, it’s COP21! Never have so many World leaders been in the same place on the same day. This time, they have just ten years to make a difference! Could the problems be solved? Will the World finally be saved?
This blog is so cool. It’s spontaneous! It’s electric!! But not as cool as it has been at these cutting-edge laboratories on the outskirts of Europe. Scientists there are dealing with an entirely new type of solid matter – ‘spontelectrics’.
Following World War I and World War II, at least three major powers disposed of massive quantities of captured, damaged and obsolete chemical warfare material by dumping them into oceans, seas and lakes around the globe. Mustard gas, phosgene, lewisite… Submerged chemical ammunitions pose very serious ongoing environmental problems.
23rd October 2015. The ‘strongest ever’ hurricane recorded in the Western hemisphere is about to make a “potentially catastrophic” landfall on the western coast of Mexico. This is hurricane Patricia. At that time, the super storm is a Category 5. Weather scientists predict 20 inches of rain and 200 miles per hour winds…
In the run-up to the 2015 physics Nobel prize, which was awarded on Tuesday 6 October, Physics World looked at how Nobel-prize-winning physicists have been moving around the globe over the past century.
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