Albert Einstein is mostly known for physics theories. Or for E=mc2 (though he didn’t write it in that way). But his biggest contribution was the boldness, number, depth, diversity, originality and sometimes sheer courage of his ideas. Every one of these ideas was controversial at the time; now they underpin the world economy. What’s the […]
Here is a mystery that needs help from armchair philosophers. Nowadays physics describes the world in terms of “fields”. What, then, is a field? It is weasel math that physicists invented to allow them to ignore the paradox of action at a distance. In the annals of thought the concept of action at a distance […]
Skepticism’s healthy. These days we don’t have to believe a news story. But to get the benefits of skepticism we need to check stories out. A good-news story in a past Science Seen post has a simple message: Hot water can cure the common cold. Some who read the post or social-media re-posts were skeptical. […]
Physics beat out chemistry to become the Senior Science in the second physics revolution starting around 1900. A hundred years ago this revolution held huge promise. Now historians of science call it the Unfinished Revolution. What went wrong? It is a strange but, in the end, illuminating five-part story. Part One: In 1851 mathematician Bernhard […]
It’s easy to feel helpless in the face of reports of terrorism. Yet we all can do something to stop it. This is especially true of those who work (as I do) at journalism: writing news and editing and publishing. Do journalists have a special duty when terrorism becomes news? It’s widely thought that journalists […]
He that breaks a thing to find out what it is has left the path of wisdom. So says J.R.R. Tolkien’s hero-wizard, Gandalf, to Saruman (an anti-hero wizard). More than a century of successful atom smashing seems to say that Gandalf got this wrong. But let’s take a closer look at what we have—and what we […]
In The Singular Universe and the Reality of Time Brazilian philosopher, Roberto Unger, and American physicist, Lee Smolin, team up to bring unruly mathematics and fanciful multiverses under control. They seek a renaissance of natural philosophy—ideas—as a driver of future physics. Let’s swing along with them. Central to their thesis is the idea of the […]
Philosophy involves the study of ideas. Yet some (like Stephen Hawking) say philosophy is dead. Others (such as Neil deGrasse Tyson) say philosophy may be alive but its ideas have no use in physics. Both of these exemplars hold the degree of Doctor of Philosophy so they should know. But so do I and I […]
How about those jets! Jets in space are hot in science news these days. They are hot because they are a huge problem. How huge? Try thinking of a billion times a billion miles. Let’s start small. Archerfish find breakfast using water jets. Their jets are longer than their body size. How they shoot their […]