Scientists have long tried to explain the origin of a mysterious, large and anomalously cold region of the sky. In 2015, they came close to figuring it out as a study showed it to be a “supervoid” in which the density of galaxies is much lower than it is in the rest of the universe. However, other studies haven’t managed to replicate the result.
Low energy efficiency is already a major problem for petrol and diesel vehicles. Typically, only 20% of the overall well-to-wheel energy is actually used to power these vehicles. The other 80% is lost through oil extraction, refinement, transport, evaporation, and engine heat. This low energy efficiency is the primary reason why fossil fuel vehicles are emissions-intensive, and relatively expensive to run.
In the past few decades, there has been an explosion in the number of extra-solar planets that have been discovered. As of April 1st, 2018, a total of 3,758 exoplanets have been confirmed in 2,808 systems, with 627 systems having more than one planet. In addition to expanding our knowledge of the Universe, the purpose of this search has been to find evidence of life beyond our Solar System.
It was only a matter of 700m years or so after Earth formed and its surface cooled and solidified that life began to flourish on Earth. All studies suggest that life requires water – and we know from rocks on Earth that the climate in this distant past was sufficiently warm for liquid water to be present. But therein lies a mystery.
Given how much they can actually do, computers have a surprisingly simple basis. Indeed, the logic they use has worked so well that we have even started to think of them as analogous to the human brain. Current computers basically use two basic values – 0 (false) and 1 (true) – and apply simple operations like “and”, “or” and “not” to compute with them. These operations can be combined and scaled up to represent virtually any computation.
Poets write about it, singers sing about it. We've all felt it at some time in our lives. There is even an entire industry that has been created around finding it, expressing it and maintaining it. But what is Love? What is really going on in our minds when we ''fall head over heels?'' Here's the science of it.
For almost a 100 years, the most important way of For close to a century, the dominant method of protecting wildlife in the U.S. has been to protect and manage the areas where animals live. Millions of acres of public and private land across the United States are managed at least partly to serve as wildlife habitat. But land managers' top responsibility is typically to increase populations of animals that people like to hunt.
Philosophy asks some fundamental and probing questions of itself. What is it? Why do we do it? What can it achieve? As a starting point, the word “philosophy” comes from the Greek words meaning a love of wisdom. And anyone who does it is trying to make sense of the world around them. In that way, philosophers are a bit like scientists.
Regular participation in muscle strengthening activity such as weight or resistance training has many health benefits. However, this mode of exercise has been largely overlooked in Australian health promotion. Our recent research shows a large majority of Australians do not engage in muscle strengthening activity.
The world’s oldest message in a bottle recently washed up on the North Sea island of Amrum, in Germany. It was one of 390 such bottles placed in the ocean by scientist George Bidder back in August 1906. During the 110-year voyage, the bottle had travelled just a few hundred miles – hardly a Robinson Crusoe-style call for rescue from a far corner of the globe. But nonetheless Bidder was on to something: such messages were and still are vital for scientists seeking to understand ocean circulation patterns.
It’s easy to assume that astronauts float in space because they are far away from the Earth’s gravitational force. But look at the moon. It is much further away than the International Space Station, yet it orbits around the Earth because it is perpetually attracted by its gravitational pull. So if the Earth’s gravity can affect the moon, the astronauts cannot be floating because there is no gravity where they are.
When you think of a broken heart, you probably picture something out of a romantic movie or a cartoon heart, cracked like a fragile piece of china. Indeed, so-called “broken heart syndrome” has a certified place in popular culture, and has been eloquently used in films such as The Notebook. But while we certainly feel “heartbreak” during periods of emotional upheaval, can you actually die of a broken heart?
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