Delta-V is the change in velocity required to achieve a goal. Remember that while velocity is a vector in 3D space, delta-V is a number or scalar. In delta-V, since V is velocity, you pronounce it as the letter V.

um, dude...It-s Delta-Vee (change in Velocity) "A Saturn-FIVE has lots of Delta VEE."

"Delta five" V is velocity, not 5.

Hey factboi! I've been listening to you since I found top tenz, eight years ago. Your content is great, and almost all other educational creators have been faded out of my feed because you now cover so many topics. (Then there's whatever BB is, though I miss the script slaps). The point is that I know this channel isn't doing great, but please keep making content for it, please! Don't let it disappear! Like highlight history, The science of science fiction, etc. Your writing and editing team rock, and that beard is glorious my man! Keep it up!

Marco Inaros approves 👍

Being a big Stargate fan, I'm surprised Simon didn't mention the episode that dealt with this.

Stop ... Ivan's Hammer time

I keep clicking on the videos because of the thumbnail then I realize it's a different channel.... HOW MANY CHANNELS DO YOU HAVE¿! 😂

Now I need to re-read "The Moon is a Harsh Mistress".

Can't even remember last time I was this early on a factboy video!

Simon I believe this could be one of your biggest channels

Didn’t Niven write a book called Lucifer’s Hammer about an asteroid strike?

Delta "V". Say the letter V not the number 5 for this term

It's "delta vee", (v for velocity), not "delta five."

Modified concepts that utilized large man-made constructions can be seen in Mobile Suit Gundam and its derivatives series, where large space colonies were dropped onto Earth, sometimes right onto population centers.

As always, great video

Love the content Simon👍

The Moon Is a Harsh Mistress is a 1966 science fiction novel by American writer Robert A. Heinlein about a lunar colony's revolt against absentee rule from Earth. The accidentally created A.I.in the novel recommends, "Just throw rocks," using the cargo return to Earth system on the Moon. For those not familiar with the physics, altering an objects path requires delta vee. As several othe rcommentors have pointed out. So many good subjects from Simon, jsut remeber to check his pronunciation ... ALWAYS!

Ultron be like “write that down write that down!!!!!”

Gives Crazy Ivan a whole new meaning.

The use of asteroids as impactors was a major plot point of "Starship Troopers" from 1997.

I love Astrographics 🎉❤

The name Ivan’s hammer is almost certainly a bloggers reference to the theoretical Thor’s Hammer weapon system in which telephone pole sized tungsten rods would be released from space, their kinetic energy upon impact being near that of a nuclear weapon. The name seems to suggest this is the Russian version of Thors Hammer….

Sephiroth: "Hold my sword." . . . . Aerith: *dies*

ASTROGRAPHICS! LET'S GOOOOO! Ooooo, big impactors! Oh, do the Rod from God!

This episode reminds me of "The Expanse" audiobooks. The narrator kept saying EVA like a name "EE vah" instead of saying it like initials "E-V-A" and "H-U-D" instead of "Hud." Simon's "Delta Five" would have fit perfectly. Ah English, it's a sh:tshow. 😂

Marco Inaros approves this video

Simon literally has a channel on every possible subject but I trust him more the the news

The V is not a five, Fact Boi, it's the symbol for velocity 🙂

it is not Delta Five, it's delta V (letter v) for Velocity

Tunguska has sometimes been called a rubble pile, enough gravity to hold together inspace but too soft to penetrate the atmospher very far. Solid rock, such as nickle iron meteorites, are the bomb ... pun intended.

Anyone remember the Anime cartoon from the early 80s called Star Blazers? An alien race was pelting earth with radioactive asteroids and the show centered around the voyage to their planet to defeat them. Anyway, asteroids as weapons, 1979.

“Statistical Scrotal Effect” is the name of my new band. Of eunuchs.

Yo keep up the good videos. That is crazy that the soviets was thinking this was a good idea even tho they had city destroying weapons already and possible even interconnetal missiles. Be so much harder try to weaponise astreroids then to just make a better bomb. You think they would have knew that from the start of even thinking about it.

The stronger sound effects in this video freaked me out at first

Delta Vee, not Delta 5.

The image next to "The First Test Flight" shows an F-15A out of Edwards AFB conducting a (successful) test of the Vought ASM-135 ASAT missile in 1985. The US Air Force started tests of anti-satellite weapons in the late 50s. While the graphic and script likely meant the first USSR tests, that is not clear when coupled with this image. Sometimes no image is better. Just sayin'.

The transitions In This channels videos are super jarring, (at least to me). I like the edits in DtU and REALLY l mainly only watch BB for the edits (go Lorelei!), but this channel I have to listen, and not watch. Does that make me old, or are they as they seem to me?

I don't know why I was expecting asteroids with giant guns and missiles hidden in it like a turret version of the Starkiller Base, but I'm mildly disappointed

All the cuts in the editing are making me think of Max Headroom.

With this video, it manages to talk about 2 awesome space shows "For All Mankind" and " The Expanse" now I get what was influencing the ideas the writers of those shows. Awesomeness.

I can't believe someone even thinks about such option. What an evil mind at work.

wow, flashback to Lister drunk playing pool with planets.

RIP Science Unbound

Has anyone else mentioned that this idea was in Starship Troopers by Heinlein?

I mean, just look at how much damage the Centuari did to the Narn homeworld using Mass Drivers ... chilling!

You could always drop a tungsten carbide nail from a geo synchronization orbit.

Meanwhile! "Sir, we've determined what caused the asteroid to go rogue. Until recently our satellites could only predict the interruption as an object we hadn't seen. It turns out, a planet is inhabited, and they've attacked us."

Oooo! Almost missed this one. So many channels and so much content makes a small brain reel. Allegedly.

Literal pie in the sky. It will take decades to setup and more money than currently exists.

og Justice League cartoon series fans know of a particular episode where Vandal Savage used a railgun illegaly built on the iss to destroy any target within range drawing on trojan asteroids and tiny moons in orbit around earth or using large satellites and a device to disrupt their orbit in Eureka

This would be such a looney thing to try to do. Just absolutely bonkers for so many reasons. If you have the capability of doing this, then you have much easier methods of taking out a city-sized target that are less prone to failure.

Guys I think I’ve finally found Simon’s last channel. Not sure tho, this guy is a KZfaq video making machine.

"Ivan's Hammer" probably comes from the title "Lucifer's Hammer"-- which was a novel about a comet striking the Earth. The authors were Larry Niven and Jerry Pournelle and I recommend it. en.wikipedia.org/wiki/Lucifer's_Hammer

Weaponizing astronauts is the name of my garage band

10^-5=tiny fraction. Small point, had to put my 2 cents in.

There is a very good sci-fi novel called "Lucifers Hammer" about a comet strike.

Currently binging this channel to try and up the numbers :( Its not exactly a difficult task 😆

(clawing at headphones) Delta FIVE? Simon! Play some Kerbal Space Program before you drive anymore glass knives into our brains.

delta V!!!! not five.... V!!! As in VEEEEE

Why no sources for any of your info in any of your vids?

For Beltalowda!

I’ve heard of a lot of sexual designations, but cis Martian is a first.

Cis-martian? Really? Really? That shakes me to the core of my mussy Mr beard man.

A beard, or Dougal from Magic Roundabout sleeping on his face?

So putting some power pole sized projectiles in a satellite seems so much simpler and easy. Add a guidance system using gps and a nose made of heavier ceramic composites capable of handling the friction and you would have an accurate city killing weapon. Or the Rods of Gods.

Lucifer's Hammer Novel by Jerry Pournelle and Larry Niven A great story that covers the idea of a comet that eventually strikes earth and the results.

Good video but I think I you may need to look into more technical proof-readers.

INCONCEIVABLE VELOCITY

Isnt that how the bugs destroyed bueno aires in starship troopers?

insted of using asteroids as weapons we should find a way to find astroids better then we can now and then find a way to push them out of the way of earth

Oh Chicken Little. Careful you're going to scare the kids.

MY PLANS!.... 😱

"Carter, I can see my house!" Some people will get it.

…the Rand Corporation in conjunction with the Saucer People under the supervision of the Reverse Vampires…

“UhHhhH iTs dELtA VEEEE” we get it he said it wrong

"I worry about people who throw rocks"

Someone please educate Simon in the lexicon of mathematics. Triangle V is not Delta five it is Delta Vee, for velocity. It means, Change in velocity or the energy required to change said velocity. I am sorry, but it is painful to listen to. I do love your work though, Simon and the basement team! (Y'all should make a band called Simon and the Basement Team! lol

I’m glad the USSR never met Unluck 😏

Reminds me The Expanse

I find this video intellectually arousing.

It's official: we're the baddies now :(

Midas 22, preparation h?

Did the script have a capital V or lowercase v? Uppercase is used for Roman numerals and velocity is traditionally lowercase, so maybe it was an error on the writer and not on Simon's brain lol

Man, I really want this channel to do so well. Keep at it Simon, lobby KZfaq some more so they get the trash astrovideos out of the algorithm!

Ivan the foolishly ambitious!

Fun fact, the same security forces that “interrogated” the alleged terrorist are piloting this program.

Everyone knows the beat space Rokks are filled with Orks!

Astrophysique noob saying delta 5 will never not make me chuckle 😂

And we bumped into an asteroid to see if we could change it's course a while back, didn't we?

👍

Delta-v? Its v the letter, not the roman numeral.

Well there goes my plan…

Any asteroid large enough to wipe out a city would have global effects. If, for instance, if the Chinese were to hit Los Ageles, the resulting tsunami would hit the Chinese coast and do damage to places like Shanghai. So I don't see how this is useful. It does have the advantage of not leaving radiation fallout, but again, something that coukd wipe out a city would kickbup a lot of dust that could affect the climate globally. Not worth the effort is what I would conclude.

These transition sound effects are a little annoying

Knowing Russia, they'd say they can do it, and either can't do it or do it but not hit the intended target...and then blame Ukraine or the West.

Can you please cover The Thunderwell!? Nuclear steam piston concept launch system/weapon for launching cargo into orbit, destroying asteroids, lol and aggressive Alien Spaceship! kzfaq.info/get/bejne/jNWemcioy7Syln0.html 😆👍 -- The steam accelerated Jules Verne capsule, which was suggested by the speed of at least 6 times earth’s escape velocity, achieved by the 10-cm thick, 1.2 m diameter steel cover blown off the top of the 152 m shaft of the 0.3 kt Plumbbob-Pascal B underground Nevada test on 27 August 1957. In that test, a 1.5 m thick 2 ton concrete plug immediately over the bomb was pushed up the shaft by the detonation, knocking the welded steel lid upward. This was a preliminary experiment by Dr Robert Brownlee which ultimately aimed to launch spacecraft using the steam pressure from deep shafts filled with water, with a nuclear explosion at the bottom; an improvement of Jules Verne’s cannon-fired projectile described in De la Terre à la Lune, 1865, where steam pressure would give a more survivable gentle acceleration than Verne’s direct impulse from an explosion. Some 90% of the radioactivity would be trapped underground!

For the belr!

delta-vee

DELTA V SIMON DELTA V NOT DELTA 5 LMFAO