September 28, 2015
The urge to sleep creeps up. There goes another off-brand energy drink. Health habits, not my strong suit; nor keeping in touch with old friends. We’re playing Civilization: Beyond Earth to kill the time. It’s almost 3 AM. I hadn’t spoken with him in a while, but tonight is the blood moon lunar eclipse. It’s a rare astronomical phenomenon, the earth will be directly in between the sun and the moon. This will cause earth to cast a shadow on the moon, a full lunar eclipse. The moon will appear red, due to the atmospheric diffraction, like a sunset. More unusually, since the moon will be very close to earth it will also appear larger than normal. It’s a good reason to catch up with old friends, a good reason to share an interest in astronomy. More people will join, and someone might bring a telescope. 4 AM, It’s almost time. We grab our coats and go for a short drive to a dark site on a levy in Friesland, away from the light pollution.
Continue reading “Astrophotography – the journey so far”
Time crystals were first predicted in 2012. Now researchers have created time crystals for the first time and say they could one day be used as quantum memories.
Crystals are extraordinary objects, not least because of their symmetry. Crystals form repeating patterns that are the same in some directions but not all directions. That’s something of a surprise given that the laws of physics, which govern their formation, are the same in all directions.
Continue reading “Physicists Create World’s First Time Crystal”
In physics, they are all the same thing. But to you, me, and everyone else, time moves in one direction: from expectation, through experience, and into memory. This linearity is called the arrow of time, and some physicists believe it only progresses that way because humans, and other beings with similar neurological wiring, exist to observe its passing.
Continue reading “Time Might Only Exist in Your Head”