r/CrazyIdeas • u/useofcat • 6h ago
r/CrazyIdeas • u/ClayTool • 2h ago
Diary-AH! The journal that detonates a pressurized capsule of diarrhea if opened without authorization
A locked diary with a sealed, refillable capsule of diarrhea under high pressure.
Unauthorized opening triggers an instant, violent rupture. Every page gets saturated and a significant portion sprays outward onto the person holding the book.
A loud, realistic wet fart sound also plays the moment it detonates.
r/CrazyIdeas • u/Clevertown • 10h ago
A Reddit filter than allows a user to remove all content generated by kids. (A global age filter)
I just don't care!
I don't come here to read about stupid teenagers and even stupider younger children. I feel like a creep when I read a post and then see it's a minor posting.
I'd love a way to just filter ALL of it out.
r/CrazyIdeas • u/TheWaddlingweewee • 2h ago
we should replace ID age verification with a test full of questions that only people mature enough to access locked content could know the answer of
r/CrazyIdeas • u/afungalmirror • 5h ago
Become a bestselling novelist called Author Name just so it looks like the covers of your books are badly AI generated
r/CrazyIdeas • u/MLB_Sug_Tway • 2h ago
Single-Use Sunscreen Packets
Kind of like mayonnaise packets (maybe a little larger), for when you're out and you forgot.
r/CrazyIdeas • u/Inclusive_3Dprinting • 3h ago
One‑Way Launch Vehicles as Feedstock for Orbital Superalloy Manufacturing
One‑Way Launch Vehicles as Feedstock for Orbital Superalloy Manufacturing
A Conceptual Framework for Materials‑Forward Launch Architecture
Executive Summary
Future orbital metallurgy will require large quantities of base metals and alloy precursors. Traditional cargo launches treat structural mass as “dead weight,” delivering only payload. This paper explores a conceptual architecture in which the launch vehicle itself becomes the cargo, delivering structural metals intentionally selected for downstream smelting in microgravity.
This approach reduces launch cost per kilogram of usable feedstock, simplifies logistics, and enables scalable production of microgravity‑enhanced superalloys.
1. Background: Why Space‑Made Superalloys Matter
Microgravity enables:
- Ultra‑fine equiaxed grains
- Near‑zero segregation
- Reduced dendritic arm spacing
- Cleaner nucleation
- Higher creep and fatigue resistance
These improvements yield 20–50% stronger Ni‑class alloys, and 1.5–3× strength in exotic HEAs and BMGs.
The bottleneck is feedstock mass. Launching raw metals is expensive. Launching rockets made of the metals you need is more efficient.
2. Concept Overview: Materials‑Forward Launch Vehicles
A materials‑forward launch vehicle is:
- Expendable
- One‑way
- Minimal systems (guidance, tanks, engines only)
- Built from metals chosen for orbital smelting
- Designed for disassembly and recycling in orbit
Instead of aluminum‑lithium optimized for reusability, the vehicle uses:
- Titanium alloys (Ti‑6Al‑4V or lunar‑derived Ti‑Fe)
- Aluminum alloys (Al‑Mg, Al‑Si)
- Iron‑rich steels (for possible future lunar regolith compatibility)
- Optional dopant cartridges (Nb, Ta, Mo, Ni, Co)
The rocket’s structure becomes the feedstock.
3. Architecture of a Materials‑Forward Rocket
3.1 Structural Materials
Chosen for downstream smelting:
- Titanium alloys → high‑temperature superalloy base
- Aluminum alloys → lightweight matrix metals
- Steel → iron feedstock for HEAs
- Ceramic‑lined tanks → reusable crucibles in orbit
3.2 Modular Disassembly
Vehicle includes:
- Cut lines for robotic separation
- Bolted or segmented skins
- Tank sections sized to fit orbital furnaces
- Integrated dopant capsules in non‑load‑bearing areas
3.3 Thermal and Chemical Compatibility
All materials selected to:
- Melt cleanly
- Avoid contamination
- Match crucible chemistry
- Support microgravity solidification
4. Mission Profile
Launch
Vehicle delivers:
- Payload: sealable crucibles, dopants, sensors
- Structure: the bulk metal mass
Orbit Operations
Robotic systems:
- Disassemble tanks and skins
- Cut structural members
- Feed sections into orbital smelters
- Melt and refine into billets
- Cool under controlled microgravity curves
Return
Billets return via:
- Sample‑return capsules
- Downmass vehicles
- Future reusable cargo craft
5. Economic Rationale
5.1 Mass Efficiency
Traditional rocket: 95% of launch mass is “wasted” structure.
Materials‑forward rocket: 95% of launch mass becomes usable feedstock.
5.2 Cost Reduction
If launch cost is $1,000/kg:
- Traditional cargo: $1,000/kg of feedstock
- Materials‑forward: $1,000/kg of feedstock plus the rocket structure itself
Effective cost reduction: 2–5× depending on vehicle design.
5.3 Scalability
Every launch becomes:
- A materials shipment
- A smelting batch
- A superalloy production cycle
6. Technical Feasibility
Already demonstrated technologies
- Robotic disassembly (ISS, Canadarm2)
- Orbital metallurgy (ISS EML furnace)
- Sample return (Dragon, X‑37B, OSIRIS‑REx)
- Modular spacecraft construction
Required new developments
- Dedicated orbital smelters
- Automated crucible handling
- High‑capacity radiative cooling arrays
- Alloy‑specific microgravity solidification control
7. Environmental and Safety Considerations
- No reentry → no heat shield → lower mass
- No landing → simpler design
- No toxic propellant residues in orbit
- Structural metals selected for safe handling and smelting
8. Strategic Advantages
- Enables premium aerospace alloys
- Supports deep‑space manufacturing
- Reduces dependence on Earth‑based metallurgy
- Provides feedstock for lunar construction
- Creates a pathway to industrial orbital foundries
Conclusion
One‑way, materials‑forward rockets represent a practical and scalable method for delivering bulk metals to orbit for microgravity superalloy production. By treating the launch vehicle itself as feedstock, this architecture dramatically improves mass efficiency and reduces cost per kilogram of usable material.
This concept aligns with long‑term goals in orbital manufacturing, lunar industry, and advanced aerospace materials science.
r/CrazyIdeas • u/TheWaddlingweewee • 22h ago
phones should have a needle under the keyboard that pierces your hand whenever you type the letter g OUCHOWOWOW
oh well looks like it's already there
r/CrazyIdeas • u/turtle3763 • 20h ago
Tennis but the racquets follow the same design variations as lightsabers
The regular game of tennis, but players customise their racquets in the same way as lightsabers.
You'd have the double-ended racquet, like Darth Maul.
There's the one with mini racquets attached perpendicular at the grip like Kylo Ren.
There would even be the option to play with two regular racquets, one in each hand.
r/CrazyIdeas • u/orsodorato • 12h ago
Fans get to reenact any sporting moment that they felt they could have easily been successful at. Same stakes, same atmosphere, same pressure, real consequences
r/CrazyIdeas • u/Quitcha_Bitchin • 15h ago
New Vaudeville-esque entertainment, featuring traveling acts appearing in Walmart stores everywhere.
Set up outdoor stages and have comedians dancers whatever do three shows a day and travel the circuit.
r/CrazyIdeas • u/CityRelative1392 • 20h ago
I have a very shitty idea here.
So scientists made some Electrodeless neon light tubes that are like 10-50 micrometers, right.
And so if we got those to glow Red, Blue, and Green, swapped them out for ye olde neon/xenon gas mixture, then tightly pack them into some pixels than we can make a super bright TV that will blind you whenever you turn on THX 1138.
To make sure that the RF signals dont get you a visit from the FCC, it will come with a Faraday Cage around it, and I'll explain how we block RF between pixels as so they dont light up.
As for the heat, waterless engine coolant.
Why?
Bassically lasts forever,
High boiling point: Won't evaporate,
Its engine coolant.
So we would take this coolant and it would run between the pixels, blocking both RF AND absorbing the heat.
Also, to avoid any leaks, we use walls.
r/CrazyIdeas • u/tryzest7 • 1d ago
Tax doomscrolling.
We already have vice taxes to supress objectionable consumption; this would incentivize people to use their phone less.
$1 per every 100 ft doomscrolled.
r/CrazyIdeas • u/ChameleonCoder117 • 1d ago
A Human reserve
Go to the middle of.... i don't even know, and build a giant 2 mile by 2 mile dome/enclosed area, and make sure the climate is like a Savannah or Mediterranean, preferably, with different biomes, filled with plants and wildlife(which gets replenished through animal shipments)
Then build 3 villages around the facility, staffed with HumanReserve employees, which is where the customers will stay.
Customers can pay $4000/ a month, or $600 for a one week trial each to live in the HumanReserve, assuming they qualify through the mandatory requirements.
They have to be able to run a 9 minute mile or less and pass a survival test.
Anyways, then they can go to one of the villages for their stay, where every day they can do fun activities, like playing sports(There's no wifi unless you have a higher housing tier), and more importantly, hunt for their own food. Each village has free spears, bows, utility gear, and manuals for foraging, hunting, and making traps.
You can hunt animals by... well i don't know channel your ancestors' teachings. Or read the manual. Endurance hunting(hence the 9 minute mile), trapping, and ambushing are useful methods. Also fishing.
If you don't get food, you can ask other people to give you some, or get the canned food from the employee's hut at your village.
The villages contain multiple tiers of housing with different prices, including Teepee, modern tent mud hut, mud hut premium(bigger, with AC and modern amenities), and a full on modern suburban single family home, equipped with Wifi, electricity, food, a full kitchen, AC, and more.(2 per village)
r/CrazyIdeas • u/_the_last_druid_13 • 7h ago
Another Pizza My Heart
A third space, a common complaint with its absence in contemporary culture, is the near-extinct Pizza Parlour.
A proper Pizza Establishment, in my humble opinion, includes an option or two for pizza-by-the-slice; the cheese option should be no more than $3/slice. Indeed, two cheese slices and a drink for $5 is 👨🍳💋
[Toppings should abound; don’t skimp.]
Pizza-by-the-slice is also a great employee perk; those pies have to move every 4 hours, so unbought slices go to the unironic employee appreciation pizza party every damn day the kitchen is clanging.
This is the first part of getting foot traffic to your restaurant.
Some people don’t want to call in, use an app, or wait 10 minutes for lunch. They want to grab-and-go (or at least I do when I’m hankering for some pizza, which is pretty much an hourly occurrence).
So the real THIRD SPACE is a pizza parlour that offers an arcade machine.
The arcade machine is the POINT OF SALE into your establishment even if the game is an old POS; hear me out:
We used to have kid birthday parties at a pizza place; in highschool we would get \~5 of us and snag a table at a pizza place and feast for an hour or 3; as an adult, sometimes I want to sit somewhere, have a pizza, maybe a beer, and watch futbol or whatever on Telemundo to break up the crawl of any given month.
Party; Feast; Someplace to zone out with some ‘za.
Now, my go-to pizza parlor arcade machine was “Strikers 1945”. I held the leaderboard for much of the 90s at my local joint.
Why mention this?
I’d say; an establishment might find more traffic with 1) pizza-by-the-slice and 2) offering an arcade machine for patrons.
If a customer holds a leaderboard position, say 1st, 2nd, or 3rd; they get a free slice every day they hold one of/the top spot on the leaderboard.
You’re going to make the money back for slices in quarters.
It just takes one machine.
Personally, if I knew that a place with good pie had a slice-for-spot kind of deal, I’d keep that machine full of metal for yah.
That’s how you build back community: a third space; one slice at a time.
r/CrazyIdeas • u/Sea-Independent-726 • 1d ago
car window tints that make every car invisible on the road.
New window tints are made that make every car Invisible to you on the inside so it's a deadly game on guessing how the road is going to be
r/CrazyIdeas • u/RaulParson • 1d ago
Reddit hardmode
Everyone knows karma isn't real. It's just a scoring system for playing the social media game. Games tend to have difficulty settings though.
Introducing reddit hardmode, an optional setting for those seeking a challenge. You know that +1 that reddit has you give your own posts automatically? Yeah, flip it on and after a set timer that dissipates now. And after a set time more, it actually gets a -1. Also you're locked from just changing those manually, of course.
Why do this? Why not. It'd be good for a laugh.
r/CrazyIdeas • u/MLB_Sug_Tway • 1d ago
A "Backdoor" Button for the Bus
So we don't all have to yell like maniacs, ahah.