What causes a Type I supernova to detonate?
What causes a Type I supernova to detonate? Enough material is drawn onto a white dwarf to increase its mass to the point of collapse, and all of its material fuses at once. -Type I supernovae occur only in binary or other multiple-star systems, whereas Type II supernovae occur in isolated single, high-mass stars.
Where would you expect to find a core collapse supernova?
Which of the following phenomena is never a consequence of a supernova explosion? nuclear fusion has produced a significant amount of iron in its core. Where would you expect to find a core collapse supernova? a rapidly expanding shell of gas and a central neutron star.
What element is currently building up in the sun’s core?
Through nuclear fusion, the sun is constantly using up the hydrogen in its core:Every second, the sun fuses around 620 million metric tons of hydrogen into helium. At this stage in the sun’s life, its core is about 74% hydrogen.
Which of the listed colors of main sequence stars will have the shortest main sequence lifetime?
blue-white
Which is the most common type of main sequence star?
Red dwarf stars
What is a giant star called?
Stars still more luminous than giants are referred to as supergiants and hypergiants. A hot, luminous main-sequence star may also be referred to as a giant, but any main-sequence star is properly called a dwarf no matter how large and luminous it is.
What is the 3rd biggest star?
RW Cephei
What is the biggest supergiant star?
VY Canis Majoris
Is it possible to go back in time?
While the debate continues over whether travelling into the past is possible, physicists have determined that travelling to the future most certainly is. And you don’t need a wormhole or a DeLorean to do it. Real-life time travel occurs through time dilation, a property of Einstein’s special relativity.
Is creating a time machine possible?
To create a time machine would require negative energy, and quantum mechanics appears to allow only extremely small regions of negative energy. And the forces needed to create an ordinary-sized region with time loops appear to be extremely large.
Can time machine be created?
Although humans can’t hop into a time machine and go back in time, we do know that clocks on airplanes and satellites travel at a different speed than those on Earth. We all travel in time! We travel one year in time between birthdays, for example.
Why Time Machine is not possible?
One significant limitation of such a time machine is that it is only possible to go as far back in time as the initial creation of the machine; in essence, it is more of a path through time than it is a device that itself moves through time, and it would not allow the technology itself to be moved backward in time.
Can you travel back in time with your mind?
Memory allows us to mentally travel backward in time as well as into the future, explained Tulving, a University of Toronto professor emeritus and visiting professor in cognitive neuroscience at Washington University, in a presidential invited address at APA’s 2003 Annual Convention in Toronto.