search results matching tag: hexagon

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (16)     Sift Talk (0)     Blogs (6)     Comments (39)   

The James Webb Space Telescope mirrors are aligned!

SFOGuy says...

I'm staggered that with so many places as critical points of failure--the JWST got through all of them. Amazing.

I know she says the "spokes" are the result of the hexagonal shapes of the mirrors (six sided mirror; six spokes)--but--does someone have a simplified explanation of why that's true for me to grasp onto?

Hexagons are the Bestagons | CGP Grey

moonsammy says...

My understanding is that bees actually use circles. It's just that the wax ends up warm and a bit flow-y, resulting in the circular tubes naturally warping into the efficient hexagon shape. The bees aren't making hexagons on purpose necessarily, nature just prefers the shape and is generally awesome.

Hexagons are the Bestagons | CGP Grey

FlowersInHisHair (Member Profile)

Solar Roadways - Reality Check

Shepppard says...

I love the explination that it can't work because eventually the hexagonal pads would create uneven roads due to the material below them eroding away, then goes on to explain that asphalt does a fantastic job of A) Creating a uniform surface to drive on, and B) it's durable.

...Why wouldn't we just put the Hexagons over the asphalt then?

Cube: A Video About Video Game Graphics

L0cky says...

Very fun.

The ones I spotted were:

Pong, Asteroids, Battlezone, Mario, Gameboy boot screen, Quake, Quake 3, Silent Hill, Limbo, FEZ, Portal, Minecraft, The Unfinished Swan, Super Hexagon, Thomas Was Alone, Half-Life and Braid.

Some could be:
Snake, Rez, Yoshis Island, Dear Esther.

The one at 0:32 is bothering me as I'm sure it's something I played a lot as a kid. Also 00:59 makes me think of the original GTA but I think it's something else from around the same time.

Picking up a Hammer on the Moon

Chairman_woo says...

That's not what I was saying at all though perhaps I explained poorly.

So imagine you are in a 0 gravity environment. You have 2 balls (lol) one has a mass of 1 kg the other a mass of 100kg. You throw both equally hard. What happens?

One ball travels away from you at 100x less the velocity of the other. This is intertia, it is an effect of mass not gravity. Gravity is an additional force but it's absence would not change the fact that a big heavy space suit requires a significant force to move at a usefully velocity in the 1st place.

It was perhaps misleading to use the example of a fulcrum (lever) but in this context it's quite illustrative. If it was 0 gravity you could apply a tiny force to a massive object and just wait however long it takes to get it where you want (like an infinitely long lever). When gravity becomes a factor duration becomes more and more of a concern (like the fulcrum of the lever gets shorter and shorter).

Concequence: the lower the gravity the easier (less work/deltaV) it is to move an object. However a massive object still requires a proportional large force to move in a useful way (in this case fast enough to overcome 0.16g for long enough to get upright).

I'm not saying gravity has no effect (quite the opposite) I'm saying big heavy thing requires big heavy force to shift even in reduced gravity environments.


As for bases on the moon, mars, stargates, ueo's, void whales, phobos being hollow (phobos is some crazy shit), hexagon on Saturn etc. Etc. I'm not outright dismissive, but to treat it as anything but food for thought/entertainment is a little worrying to say the least. What do you have to go on there other than the testimony of other people who claim to have been involved or whatever?

There's no hard data avaliable to the likes of you and I on such things. Many of these ideas cannot be entirely refuted, but nor can they be confirmed either. That puts us squarely in the realm of superstition and religion.

I'm a part time discordian/khaos magus/git wizard so I do have more time than most for superstition and flights of fantasy but I steer well clear of treating any of that kind of think as objective fact.

The realms of materialism and idealism should stay entirely separate except when they converge and compliment each other e.g. If I can imagine a black swan and then go out and find one (after performing the necessary experiments to disprove any other possible explanations for why it might seem black) then I can tell others that black swans are definitely a real thing. The same cannot be said for say the flying spaghetti monster or the chocolate tea pot orbiting the sun even though believing in such things makes my life more interesting under certain circumstances (and such liberated thought processes can eventually lead to as yet undiscovered ideas which may indeed prove to be "true" or helpful).

"Given all theories of the universe are absurd, it is better to speak in the language of one which Is patently absurd so as to mortify the metaphysical man." -Alaistair Crowley

Translation: if your going to indulge stuff like this don't take it or yourself too seriously or you will go mental!

Praise be to pope Bob!
23

MichaelL said:

So you're saying on Jupiter or any other super-giant planet, we should have no problem walking about, lifting the usual things such as hammers, etc with no problem because the mass is the same as Earth?
Hmm, didn't think gravity worked like that. I always read in text books that on the moon, you should be able to jump higher because gravity was less than earth... but you say no.
Damn scientists always trying to confuse us...
(Pssst... weight and mass are different things. Weight measures gravitational force... the force that you have to overcome to lift something... less gravity = less force to overcome)

As for the conspiracy thing... you do know we already have bases on the dark side of the moon and Mars right? Look up Alternative 3...

Hexaflexagons

Undersea oddity - New animal?

jimnms (Member Profile)

Casting a Hexagonal Pewter Stool at the Beach

Asmo says...

>> ^jmd:

Asmo, Seems we both knew that there was nothing dangeriouse with using molten lead/tin on the beach, and we both gave similar every day examples of handling lead that is common place and safe. It appears however your sense of humor is..lacking.


That's why I said "Please tell me this is a bad attempt at a troll"...

It's there in plain english, surprised you missed it...

Casting a Hexagonal Pewter Stool at the Beach

jmd says...

>> ^Sagemind:

Psst.., That's called graphite, not lead (in pencils)


hah, you know your right. infact our pencils never used lead.. it was implied in TV shows and movies at the time for comedic value but yea, its always been graphite huh. Where was the history channel when I was 10.

Casting a Hexagonal Pewter Stool at the Beach

Sagemind says...

Psst.., That's called graphite, not lead (in pencils)

>> ^jmd:

Frax, youmusta been a peach at school. "ZOMG! YOUR ALL USING STICKS OF DEATH!" "No of course I didn't do my homework... does it look like I wan't lead poisoning?" "Test that require number 2 pencils is the gov trying to kill off the 99%!!"

Casting a Hexagonal Pewter Stool at the Beach

Asmo says...

>> ^jmd:

Frax, youmusta been a peach at school. "ZOMG! YOUR ALL USING STICKS OF DEATH!" "No of course I didn't do my homework... does it look like I wan't lead poisoning?" "Test that require number 2 pencils is the gov trying to kill off the 99%!!"


Please tell me this is a bad attempt at a troll...

re: Frax's comment, oh come off it, the amount of leaching would be minimal, and then people (or animals) would need to ingest a large volume of the sand to get the lead in to them. You'd get more direct exposure handling lead sinkers for fishing lines.

Casting a Hexagonal Pewter Stool at the Beach

EvilDeathBee says...

>> ^smooman:

alright, i'll ask it: what the hell is a hexagonal pewter stool?
edit oh, it's a stool in the shape of a hexagon, made from molten pewter.....patience fail.
thought hexagonal pewter stool was some crazy science instrument....used to measure....i dunno, i failed science class ok! >=(


Hexagonal Pewter Stool would make a good name for a band



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon