What's Cool in Science This Week?

Started by bayonetbrant, January 09, 2017, 11:08:31 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Pete Dero

Quote from: Silent Disapproval Robot on March 11, 2021, 05:12:52 AM
Screwed up the url links when I first posted.  They're fixed now.  Have a look.

Read the articles and want to add that my remark above is only about the YT video.

Contrary to what he pretends Darwin's theory does explain the existence of humans.  Whether the first examples are found in Europe or in Africa is rather unimportant to the theory.


https://www.livescience.com/474-controversy-evolution-works.html

Even though scientists could predict what early whales should look like, they lacked the fossil evidence to back up their claim. Creationists took this absence as proof that evolution didn't occur. They mocked the idea that there could have ever been such a thing as a walking whale. But since the early 1990s, that's exactly what scientists have been finding.

The critical piece of evidence came in 1994, when paleontologists found the fossilized remains of Ambulocetus natans, an animal whose name literally means "swimming-walking whale." Its forelimbs had fingers and small hooves but its hind feet were enormous given its size. It was clearly adapted for swimming, but it was also capable of moving clumsily on land, much like a seal.

When it swam, the ancient creature moved like an otter, pushing back with its hind feet and undulating its spine and tail.

Modern whales propel themselves through the water with powerful beats of their horizontal tail flukes, but Ambulocetus still had a whip-like tail and had to use its legs to provide most of the propulsive force needed to move through water.

In recent years, more and more of these transitional species, or "missing links," have been discovered, lending further support to Darwin's theory, Richmond said.

Fossil "links" have also been found to support human evolution. In early 2018, a fossilized jaw and teeth found that are estimated to be up to 194,000 years old, making them at least 50,000 years older than modern human fossils previously found outside Africa. This finding provides another clue to how humans have evolved.



https://www.scientificamerican.com/article/how-scientists-discovered-the-staggering-complexity-of-human-evolution/

Since then, Wood says, "the evidence has come in." In the past century and a half, science has confirmed Darwin's prediction and pieced together a detailed account of our origins. Paleoanthropologists have recovered fossil hominins (the group that comprises H. sapiens and its extinct relatives) spanning the past seven million years. This extraordinary record shows that hominins indeed got their start in Africa, where they evolved from quadrupedal apes into the upright-walking, nimble-fingered, large-brained creatures we are today.

Sir Slash

But Who created Evolution? And Darwin for that matter? Sooner or later you get to the, 'Who came first, the Chicken or the Egg' question. That's where God comes in.
"Take a look at that". Sgt. Wilkerson-- CMBN. His last words after spotting a German tank on the other side of a hedgerow.

Pete Dero


ArizonaTank

#828
In a very cool nod to history, the Mars helicopter named "Ingenuity," carries a small swatch of cloth from the under wing of the original 1903 Wright Flyer (the one that made the first powered flight at Kitty Hawk, North Carolina on December 17th, 1903).

Ingenuity is set to take its first flight in April.

https://www.msn.com/en-us/news/technology/part-of-wright-brothers-1st-airplane-on-nasas-mars-chopper/ar-BB1eUDhE?ocid=msedgntp
Johannes "Honus" Wagner
"The Flying Dutchman"
Shortstop: Pittsburgh Pirates 1900-1917
Rated as the 2nd most valuable player of all time by Bill James.

ArizonaTank

Johannes "Honus" Wagner
"The Flying Dutchman"
Shortstop: Pittsburgh Pirates 1900-1917
Rated as the 2nd most valuable player of all time by Bill James.

Sir Slash

This should be good. Can't wait.  :bd:
"Take a look at that". Sgt. Wilkerson-- CMBN. His last words after spotting a German tank on the other side of a hedgerow.

steve58

First flight delayed...no sooner than April 14

Quote
NASA's Ingenuity Mars helicopter is scheduled to lift off no sooner than April 14 in the first-ever attempt at powered, controlled flight on another planet, a delay from its initial planned launch date.

While lift-off was initially targeted for Sunday, April 11, the agency announced the delay on Saturday afternoon.

In a release, NASA's Jet Propulsion Laboratory (JPL) explained that the decision was made based on data that arrived late Friday night.

"During a high-speed spin test of the rotors on Friday, the command sequence controlling the test ended early due to a 'watchdog' timer expiration. This occurred as it was trying to transition the flight computer from 'Pre-Flight' to 'Flight' mode," they explained. "The helicopter is safe and healthy and communicated its full telemetry set to Earth."

https://www.foxnews.com/science/nasas-mars-helicopter-ingenuity-historic-flight
Government is not the solution to our problem—government is the problem.   Ronald Reagan
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.   Thomas Jefferson
During times of universal deceit, telling the truth becomes a revolutionary act.   George Orwell
If you ever find yourself in need of a safe space then you're probably going to have to stop calling yourself a social justice warrior. You cannot be a warrior and a pansy at the same time   Mike Adams (RIP Mike)

Pete Dero

First Flight of the Ingenuity Mars Helicopter: Live from Mission Control   https://www.twitch.tv/nasa

jamus34

Quote from: Pete Dero on April 19, 2021, 05:24:23 AM
First Flight of the Ingenuity Mars Helicopter: Live from Mission Control   https://www.twitch.tv/nasa

This is probably the coolest thing we've done on an extraterrestrial basis since landing a man on the moon.

It's one thing to land something on another planet, but to achieve powered flight in almost no atmosphere is unbelievable.
Insert witty comment here.

ArizonaTank

Quote from: jamus34 on April 19, 2021, 07:19:47 AM
Quote from: Pete Dero on April 19, 2021, 05:24:23 AM
First Flight of the Ingenuity Mars Helicopter: Live from Mission Control   https://www.twitch.tv/nasa

This is probably the coolest thing we've done on an extraterrestrial basis since landing a man on the moon.

It's one thing to land something on another planet, but to achieve powered flight in almost no atmosphere is unbelievable.

+1
Johannes "Honus" Wagner
"The Flying Dutchman"
Shortstop: Pittsburgh Pirates 1900-1917
Rated as the 2nd most valuable player of all time by Bill James.

steve58

#835
Another plus for 2021, NASA and USA  O0


NASA's experimental Mars helicopter Ingenuity lands on the surface of Mars on Monday. (NASA/AP)

Not sure if this shot is from todays flight, but its a great closeup shot of Ingenuity:

Government is not the solution to our problem—government is the problem.   Ronald Reagan
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.   Thomas Jefferson
During times of universal deceit, telling the truth becomes a revolutionary act.   George Orwell
If you ever find yourself in need of a safe space then you're probably going to have to stop calling yourself a social justice warrior. You cannot be a warrior and a pansy at the same time   Mike Adams (RIP Mike)

Sir Slash

"Take a look at that". Sgt. Wilkerson-- CMBN. His last words after spotting a German tank on the other side of a hedgerow.

steve58

Gotta look close at the image below to see Ingenuity, but yesterday she took her 3rd flight.




Quote
Make it a hat trick on the Red Planet for NASA's Mars helicopter Ingenuity.

The 4-lb. (1.8 kilograms) chopper aced its third-ever Martian flight early this morning (April 25), adding to its already impressive resume.

"Third flight in the history books." officials at NASA's Jet Propulsion Laboratory in Southern California wrote on Twitter. "Our #MarsHelicopter continues to set records, flying faster and farther. The space chopper is demonstrating critical capabilities that could enable the addition of an aerial dimension to future missions to Mars & beyond."

And today's sortie was significantly more complex than Ingenuity's previous two flights, which took place on Monday (April 19) and Thursday (April 22), respectively. On its historic, 39-second debut hop—the first powered, controlled flight for an aircraft on a world beyond Earth—the solar-powered helicopter went straight up and down and reached a maximum altitude of about 16.5 feet (5 meters).

Ingenuity went about that high on flight number two but stayed up for nearly 52 seconds and moved side-to-side a total of 13 feet (4 m).

"For the third flight, we're targeting the same altitude, but we are going to open things up a bit, too, increasing our max airspeed from 0.5 meters per second to 2 meters per second (about 4.5 mph) as we head 50 meters (164 feet) north and return to land at Wright Brothers Field," Ingenuity chief pilot Håvard Grip, of NASA's Jet Propulsion Laboratory (JPL) in Southern California, wrote in a blog post Friday (April 23). (The Ingenuity team named the chopper's flight zone after aviation pioneers Wilbur and Orville Wright.)

https://www.scientificamerican.com/article/mars-helicopter-ingenuity-goes-long-distance-in-third-flight/
Government is not the solution to our problem—government is the problem.   Ronald Reagan
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.   Thomas Jefferson
During times of universal deceit, telling the truth becomes a revolutionary act.   George Orwell
If you ever find yourself in need of a safe space then you're probably going to have to stop calling yourself a social justice warrior. You cannot be a warrior and a pansy at the same time   Mike Adams (RIP Mike)

steve58

Government is not the solution to our problem—government is the problem.   Ronald Reagan
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.   Thomas Jefferson
During times of universal deceit, telling the truth becomes a revolutionary act.   George Orwell
If you ever find yourself in need of a safe space then you're probably going to have to stop calling yourself a social justice warrior. You cannot be a warrior and a pansy at the same time   Mike Adams (RIP Mike)

steve58

4th flight got delayed by the same software glitch that delayed the 1st flight, but NASA says all is well with Ingenuity and the 4th (and 5th) flights will happen.  Not only that, but NASA now says Ingenuity won't be abandoned after 30 days.  The "mission will now change into an "operations demonstration", to see how it might help do science work."   :bd:

https://news.yahoo.com/nasa-mars-helicopter-ingenuity-passes-155606645.html
Government is not the solution to our problem—government is the problem.   Ronald Reagan
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.   Thomas Jefferson
During times of universal deceit, telling the truth becomes a revolutionary act.   George Orwell
If you ever find yourself in need of a safe space then you're probably going to have to stop calling yourself a social justice warrior. You cannot be a warrior and a pansy at the same time   Mike Adams (RIP Mike)