Sci-fi Weapons, Vehicles and Equipment

Yeah, like all movies, it overstates the capabilities of near future weapons. Drones of that size wouldn't pack that much punch, and one wonders how the drones controllers knew where to find the President. But that said, it's broadly accurate. It partly depends on how those things were being controlled—if they were being remotely controlled, then someone was looking through the camera eyes of every drone, and that takes a lot of trained personnel. If they were autonomously self-controlled, as in a swarm intelligence, then they would pick off targets more or less randomly, or according to a very simple algorithm, and could very well miss the President fishing in a small boat.

You couldn't intercept such things with firearms, and I don't know if the Secret Service has electronic warfare capabilities. Presuming you could set up the President in a location where he could be attacked that way, once the drones arrive they would be pretty much unstoppable.

OTOH, a helicopter could easily outrun them.

The Secret Service had plans to shut down drones back in 2015. You literally can't start up a drone near the President. The drone won't even turn on because the government mandated they all operate on a frequency.

So unless all of those were built by hand using specialized equipment one-by-one, they would've fell from the sky the moment the came within a certain radius of POTUS

Yeah, those are so very much Hollywood explosive. Way more fire than there would really be and way too big.

Tactical: That only works for common commercially available drones mostly hobby drones. The sum total of all possible frequencies for drones easily falls outside just that one bandwidth and nothing stops someone from modifying a drone and controller to use a different one as long as they know how to. A weaponized drone has no such restrictions and an unknown 3rd party using weaponized drones isn't exactly required to adhere to the guidelines of common manufacturers. There have been actual recorded munition drone attacks at public events by 3rd parties using purpose-built systems rather than kludged together systems.

Doesn’t gravity have any effect what soever on heat? Or at they two completely separate phenomena?

1. Gravity can have an effect on the density of materials, which affects heat transfer through them.
2. Gravitational compression, such as in stars and planets, generates heat.
3. Tidal gravity can generate heat from differential forces within objects (shearing).
4. Heat energy is conveyed via electromagnetic radiation (photons), which follow the curvature of spacetime as they travel.
5. Photons, which carry energy, exert gravity, albeit very very little.

Edited by Fighteer on Aug 26th 2019 at 3:15:19 PM

Based on that you could use artificial gravity to potentially keep heat trapped on your ship so it’s not detected. Provided you had sinks of course

Umm, no. Not even a little, unless your artificial gravity can generate black holes. If it does, then you could use those as heat sinks (or power sources, depending), but the physics get utterly wackadoodle at that level.

Stealth is the last thing i'm thinking about with that.

If you're the only one who has it, nothing the enemy can do to damage your ship. Any physical slug becomes useless.

If you can produce an event horizon with artificial gravity, not even lasers can hurt you.

What would be the effect if human blood acted as a non-newtonian fluid?

Shear-thickening as in ethylene glycol? Shear-thinning as in ketchup? Or otherwise?

Blood already has a lot of non-Newtonian properties and is already considered one.

Was hoping to mimic some of the indestructible traits of those fluids in the human body

Problem is that non-newtonian blood wouldn't flow properly. I mean, imagine ooblek in the heart.

You could pull the Revengence thing with fluids selectively hardening rather than tissues.

You want a heart attack? Because this is how you get a heart attack!

Yeah, this just sounds like a bad idea all around. Taking too much of an impact would make things a lot more dangerous and stop blood flow when you likely need it the most. I could maybe see something like that for a dermal or sub-dermal layer of protection though.

Edited by TuefelHundenIV on Sep 5th 2019 at 6:22:47 AM

Maybe ditch the blood, and make your ribs like a carapace? Might be a way to prevent stab wounds.

If I remember right, there's a fatty layer right under the skin. You could dope that tissue with non-newtonian fluid.

Since it tapers off near the joints you wouldn't even have to worry about mobility issues.

Nanofibers in the skin?

Ribs like a carapace and filaments in your skin? Let's add some spare vital organs while we're at it and oh look, a Space Marine.

What all is in those guys any way. ._.;

Lots of goodies that make them tough as nails.

So, I have a character that invented a Diesel engine that has 70% heat efficiency. Are there any societal implications aside from better fuel economy? I kind of just made it up on a whim tbh lol.

Well you've made every other type of combustion engine obsolete.

That’s putting it mildly. You’d literally become a billionaire overnight, almost literally.

Assuming this engine could be made cheaply and reliably, you've put every other internal combustion engine in the obsolescence bin. While technology is moving away from IC regardless of its efficiency due to pollution issues, this kind of revolutionary gain would push that threshold back quite a bit.