Ultimate Steve

What funny/interesting thing happened in your life today?

Recommended Posts

25 minutes ago, CatastrophicFailure said:

I’m not a flat-earther, will you carve my name into a rock anyways? :D

IIRC, the exhaust plume just spreads out so much in a vacuum (seeing rockets rising on columnar plumes on earth really messes with your... perspective here) that there’s not nearly enough force left to dig out a crater. It’s also only close enough to interact with the surface for a scant few seconds, and then at very low throttle. I believe you can see crater-like rays emanating out from the LEM on some of the later “aerial” shots from Lunar Surveyor, but they’re also heavily smudged by footprints. 

Yep, and you can see dust being kicked up in the videos of the landing. He wasn't talking about the video, though, because apparently that's completely different from the pictures

A comparison I thought of later is expecting a helicopter to kick up a crater as it lands. It's unreasonable because the thrust is so spread out and primarily used to displace gas, not rock. Displacing rock to slow down is called lithobraking.

Share this post


Link to post
Share on other sites
6 hours ago, cubinator said:

He payed me no mind when I told him about the time I was at a beach in Rio de Janeiro, and could see a white buoy when standing but not when squatting. He didn't understand that you'd be able to see it at any altitude

He should say that the light interferes with a close surface, so being close to the water or ground surface you can see worse, while from plane you can see farther. From "space" you see the best, but curved.
Also maybe you can't see direct light rays, but only curved ones, and maybe the light rays have some curvature radius more or less equal to the Earth "radius", and that's why you can see it "spherical" from "space".
(Any flat-earthers here? Take a note.)

6 hours ago, cubinator said:

I also told him about the time I measured the distance to the Moon by parallax. He believes we cannot see craters and features on the Moon because it is too far away.

He should say that "That's no Moon!", and what you are calling Moon is in fact a glare on a solid sky surface containing a blurred and distorted reflection of the round Earth.
As you can see the only Moon "craters" pattern, this proves that the Earth is round and doesn't rotate, so from any point on the Earth surface you see the same "crater" picture on the "Moon".
(Any flat-earthers here? Take a note, this is a nice start for comparative geography, which "crater" is a reflection of which Earth structure..)

6 hours ago, cubinator said:

I expected him to ask how we know the Moon is closer than the stars to be able to use parallax

Same way as glares on your telescope lenses are closer to you than the "Moon".
(The further discussion about craters. What "craters" on a glare? It's a light spot, you see a distorted terrestrial landscape.)

***

They should make a 3d flat Earth simulator.

Share this post


Link to post
Share on other sites
6 hours ago, kerbiloid said:

They should make a 3d flat Earth simulator

There is. I think his name was Walter Bislins or something similar.

They don't get it. Hilariously they think his simulations support the idea of a flat Earth.

I love the fact that these people don't get their own geometry!

Share this post


Link to post
Share on other sites
15 hours ago, cubinator said:

Today I spoke with a flat Earther.

Lucky you. I've never had such pleasure. Maybe for the best, since I usually don't have much patience for willfully stupid. Your particular specimen may have been tolerable for me, though. 

15 hours ago, cubinator said:

However, he instead went a different direction (towards the Moon landing conversation) and asked how all those craters, supposedly made by meteor impacts which should come in from all sides, all end up perfectly circular. I don't know why this is, and I told him as much, but I will find more information later on that. (Pretty sure Scott Manley or such has a video on it.) 

The answer is very simple. There are plenty of craters that are not circular. A google search for elongated crater shows us countless of examples. The thing is, it take extremely shallow angle to produce a non-circular crater.

Furthermore, it's not very difficult to take a gun/rifle and shoot some sand and see what happens. If that's too much to ask, somebody already did it. From NASA Ames Vertical Gun Range:

Well, it's NASA and they're obviously lying. But if they are, it's not difficult to replicate the experiment to an extent. This particular shot was made at 30° from horizontal, so a pretty shallow shot, and it still produced circular crater. While it would be hard to match the speed of this projectile, even with high power rifles, I'm fairly confident that even an airgun would be enough for a result and some backyard science (obey your local laws, folks).

15 hours ago, cubinator said:

He then asked something interesting.

He asked if I had ever seen one of these meteors impact the moon.

Yes I have.

I saw the meteor that hit the Moon during January's lunar eclipse and was recorded by many astrophotographers. Again, he payed little mind to my experience.

Hey, that's awesome!

 

Share this post


Link to post
Share on other sites

I figured out the length of the front-straight at Gateway Speedway because Wikipedia is terrible with basic information like that.

Basically, I approximated the length of the front-straight by measuring the pixels it took up on Google Earth (~600p). Then, I did the same for the length of the scale, which said the bar was 200 feet (at ~70p). Some simple math later, I found the result to be 1,714.28571428 feet, which translates to 0.32467532 miles- just a tad shy of my guesstimate of 0.325 miles. If anyone wishes to check the math of the 1.25-mile oval, feel free!

Share this post


Link to post
Share on other sites

Here have a real life glitch

 

So lately i have been reading a lot before sleeping,when i feel tired i put the book in a night table i have right by my bed.

So last night the book fell,that happens...

What is not normal is that the bookmarker was at the living room.

It somehow when out of my bedroom and down the stairs.

And there is a hallway between me and the stairs.

I guess my cat likes bookmarkers?

Share this post


Link to post
Share on other sites
1 hour ago, KerbolExplorer said:

Here have a real life glitch

 

So lately i have been reading a lot before sleeping,when i feel tired i put the book in a night table i have right by my bed.

So last night the book fell,that happens...

What is not normal is that the bookmarker was at the living room.

It somehow when out of my bedroom and down the stairs.

And there is a hallway between me and the stairs.

I guess my cat likes bookmarkers?

Gremlins....

gremlins-ultimategremlin-figure-closeup-

Edited by StrandedonEarth

Share this post


Link to post
Share on other sites

Made espresso this morning for the first time in several days (new machine). Woot!

Share this post


Link to post
Share on other sites

I'm in a Flat Earth video.

Now I can relive this experience as many times as I want. That's 0 times.

Edited by cubinator

Share this post


Link to post
Share on other sites
22 minutes ago, cubinator said:

I'm in a Flat Earth video.

Congratulations...?

Not sure if this is something to be proud of. Certainly you're getting exposure, but in the wrong group, for the wrong purposes.

Share this post


Link to post
Share on other sites
14 minutes ago, Delay said:

Congratulations...?

Not sure if this is something to be proud of. Certainly you're getting exposure, but in the wrong group, for the wrong purposes.

Certainly. I just did it to talk with the guy, and I'm only in a video because he was recording it. It wasn't necessarily something do be proud or ashamed of, rather it was an educational experience for me. I did learn some core things about the mindset.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.