If traveling into the past is possible, one way to do it might be sending people through tunnels in space.
by raggio5 via Pixabay
Scientists are trying to figure out if time travel is even theoretically possible. If it is, it looks like it would take a whole lot more knowledge and resources than humans have now to do it.
This experimental setup shows an ultra-low-power wireless communications device that could one day be used in tiny remote sensors.
A wireless transmitter uses almost no power and at first glance appears to violate the laws of physics. It’s actually a clever use of physics that could one day transmit data from tiny remote sensors.
Like a coffee you can’t finish stirring, a ‘time crystal’ is a strange quantum state of matter than never settles down to equilibrium.
The laws of physics explain why you can’t stop ink from spreading in water.
Probabilistic processes are never time-reversible.
In Beijing’s climate, you could coat a Sydney apartment in a few inches of snow with the same energy the air conditioning would use in an hour.
The land surface heats up during the day because of solar radiation coming in from the sun.
This is a really important question, and one which climatologists work on in many aspects of their jobs.
Freezers use a evaporation and condensation to pump heat out of the fridge and into the kitchen.
Already out of charge – again?!
Emptying and refilling a battery is a lot like pouring water from one glass to another, over and over again.
When is it too hot to fly?
Major airports around the world will see more frequent flight restrictions in the coming decades because of increasingly common hot temperatures.
Shaken not stirred …
Getting tellurium and phosphorus to form a molecule is stupidly hard and not very glamorous. Here’s why it’s worth the effort.
The magnitude of the Mount Gambier volcano eruption, 5000 years ago, has been calculated for the first time. Monash University…
Better than your refrigerator.
How can you turn lukewarm lager to ice-cold beer in under a minute? A startup has developed a nifty gizmo which does just that, saving both energy and embarrassment at parties. Manufacturer Enviro-Cool…