Why hasn’t one species “won” evolution? Why hasn’t one super-species outcompeted all competitors?

Humans are the dominant species based on our technology and industry intelligence, opposable and language skills. There are creatures that eat humans, but homo-sapiens as a species won’t be wiped out because of it. Most of us just avoid being in a place where we might get eaten by a shark or a crocodile or a lion.

We have our educational institutions, Internet, electricity, cities, medicine, cellphones, transportation and so on.

In that sense, we are the super-species.

But there’s nothing saying we will improve in the future. We could devolve over a few hundred thousand years time. Dependence on technology and shopping in supermarkets doesn’t advance mean we will evolve “upwards.” For example, I wear eyeglasses, but it used to be in days of yore if you couldn’t see clearly you’d die soon enough. There’s nothing saying that our eyesight, teeth and a host of other things will improve over time.

Right now, however, we’re the pinnacle, standing at the top of the hill. Like this picture that I took in Caprock Canyon State Park in Texas and then heavily modified it inside The GIMP.

caprockcanyonstatepark

 

Planetary exploration to Mars will bring new policies. For example, maybe even a new constitution on Mars. What would be yours for the new colonization of Mars?

This hypothetical question doesn’t take the harsh realities described below. You begin by saying planetary exploration to Mars will bring new policies. Maybe here on Earth, like what we have in Antarctica, for Mars. The Chinese are likely the first ones to send a manned mission.

In my pessimistic and realist point of view, Mars will never have a human civilization living on it. I almost get tired of saying it over and over again. Mars cannot be terraformed. It is too small and has no organized magnetic field to shield from harmful rays of the sun. Too small means too little gravity, which means to have enough atmospheric pressure for humans would require a much thicker atmosphere than Earth because things, including atmosphere, weigh less on Mars. Because it’s so small, however, it doesn’t have the gravity to hold such an atmosphere and the unhindered cosmic rays from the sun would just blow it away into space.

Mars is not very hospitable and is very, very far away. We may one day have human footprints on Mars, although that is not necessary and very dangerous just so we can say we did. Pretty much everything we want to find out about Mars can be done by our rovers and future rovers.

If an intelligent species preceded us on Earth and wanted to leave a record of themselves in a time capsule, then one of the Lagrange points would be a good place for it. Is anyone looking for one there?

Great question! You asked specifically if one of the Lagrange points could be a good place to hide a time capsule from the past. The answer is “no” because, you see, an orbit in a Lagrange point is inherently unstable and would eventually either fall to Earth or fall to the Sun.

According to space.com, “L1, L2 and L3 are all unstable points with precarious equilibrium. If a spacecraft at L3 drifted toward or away from Earth, it would fall irreversibly toward the sun or Earth, “like a barely balanced cart atop a steep hill,” according to astronomer Neil DeGrasse Tyson. Spacecraft must make slight adjustments to maintain their orbits.”

Lagrange_points

Las Vegas Shooter Videos: Shooter on 10th Floor as well?

I came across some videos on YouTube thinking they were just another hoax. However, they do indeed appear to show a shooter around the 10th floor, not the 32nd floor, taken by different people at different angles. Muzzle blasts can clearly coming from a different part of the hotel. A friend on Quora suggested it might be a reflection off the sign near the window in question, however is it? Was there a second shooter?

There are a lot of similar videos and they do have what looks like contradictory evidence clearly shown.


Why is the International Space Station not in a circular orbit?

Why is the International Space Station not in a circular orbit? The International Space Station is in a circular orbit around a globe called Earth. But if you try to stretch the globe out to flat map it looks like a sine wave pattern. This flat earth map is probably why you’re thinking it’s not a circular orbit. Below the image here is an animation of what’s really happening.

Because of the inclination of the orbit, the space station never actually goes over either pole. So in the sine wave image above you’ll see it seems to curve away from the poles. Below you can see how the ISS travels around the globe to produce an orbit on a flat map like above.