For the first time, physicists have discovered that ‘holes’ of light can travel faster than light itself. They are known as phase singularities or optical vortices, and since the 1970s, scientists have predicted that, just as the eddies in the river can move faster than the water flowing around them, so can the waves of … Read more
For the first time, physicists have discovered that ‘holes’ of light can travel faster than light itself. They are known as phase singularities or optical vortices, and since the 1970s, scientists have predicted that, just as the eddies in the river can move faster than the water flowing around them, so can the waves of … Read more
Credit: POSTECH University, South Korea. Water is the most common liquid on Earth, yet it almost defies the laws of thermodynamics. Every known liquid contracts and thickens when cooled. Water does the opposite. As you cool water after it freezes, it shrinks considerably, which is why ice floats easily in ponds, lakes, and oceans. Now, … Read more
Try to bend a piece of glass, and it may break. But what if it were possible to create a different, stronger type of glass? Researchers at the University of Oregon conducted physics experiments and developed a mathematical solution to create what they call “perfect glass.” That is, glass is made of molecules packed as … Read more