33 votes

Is this super soldier viable and grounded?

Usually hard sci-fi and "nanomachines anything" don't work together, but your super-soldier has more serious issues that have to be addressed first. Don't bring a fist to a bomb fight. Even ...
Mermaker's user avatar
  • 9,045
25 votes

Reductive instead of oxidative based metabolism

Any oxidation reaction is also a reduction reaction; at least one reactant is oxidized, and at least one reactant is reduced. Here on Earth's surface, most animal life eats its reducing agents, ...
jeffB's user avatar
  • 612
24 votes

Will it be possible to prevent cancer by introducing ECC on genome?

Cellular biology already has error-correcting mechanisms that are far more sophisticated than simple codes like checksums or parity bits. For instance, one of the most common replication errors is the ...
Cadence's user avatar
  • 38.2k
22 votes

Is this super soldier viable and grounded?

Most of your Augmentations are Counter Productive The implant is also used as a cybernetic interface that will operate the Titan armor This one little detail derails your whole idea of what a super ...
Nosajimiki's user avatar
  • 92.7k
16 votes
Accepted

Will it be possible to prevent cancer by introducing ECC on genome?

If you're interested in genetic modifcations to suppress cancer, you might want to have a look at elephants and whales. Due to their large mass (and therefore high cell count) they're at a much higher ...
Brendan Mitchell's user avatar
13 votes

Replacing Light in Photosynthesis with Electric Energy

Electricity is not a source of energy, but just a carrier, in the same way a bucket of water just carries water, while a well sources it. You say it also in your description: it would absorb ...
L.Dutch's user avatar
  • 287k
10 votes

Reductive instead of oxidative based metabolism

Oxidation reactions bring the atoms involved in a configuration of lower free energy, therefore they are energetically favored and lead to the release of energy, which life can use. Reduction ...
L.Dutch's user avatar
  • 287k
10 votes

Could a species with multiple types of genetic material, like a “universal donor”, reasonably naturally exist?

It doesn't seem plausible. There's a lot to unpack about why you can't do this with genetics, but it boils down to a common misconception. DNA doesn't code for "traits". DNA codes for ...
Cadence's user avatar
  • 38.2k
10 votes

Is this super soldier viable and grounded?

These aren't good soldiers. A few bullets will still punch through these guys, especially from larger caliber firearms. Explosives would also work just about the same. Any marignal increase to ...
Phoenix Duck's user avatar
9 votes

Can just heat be used to power ATP production?

No, heat alone can't power any engine. If you had a high temperature reserve and a low temperature reserve, you could extract part of the energy difference between the two as useful work, with a ...
L.Dutch's user avatar
  • 287k
9 votes
Accepted

Could You Use Mitochondria to Power Your Cell Phone?

Mobile phones don't run on Adenosine Triphosphate (ATP), they run on free electrons. In order to use protons (H+ ions) to generate free electrons, you'd have to either modify ATP Synthase to produce ...
Monty Wild's user avatar
  • 60.2k
9 votes
Accepted

Could alkaline digestive system work?

Your stomach is acid, because that's the best sort of environment for the functioning of pepsin, a protein-chopping enzyme. It is very definitely not the only such enzyme in your body, or even your ...
Starfish Prime's user avatar
8 votes
Accepted

How would an animal produce oil that creates a purple flame when burned?

You're on the right track in identifying that the Potassium ion is the most common ion that flame-tests something that might be described as purple; and Potassium is abundant in sea water, and ...
addaon's user avatar
  • 1,451
8 votes

What chemicals could convert CO2 into oxygen within a living organism?

There are a number of issues with this scenario Lifeforms that exist in a 200 C environment, even without having an internal body temperature of 1000 C, are far removed from any Earth biology. If ...
KerrAvon2055's user avatar
  • 27.5k
7 votes
Accepted

Replacing Light in Photosynthesis with Electric Energy

So, on a principle level your idea has no blunder. It should technically be possible for such an organism to evolve. However, there are multiple issues which i think render this almost impossible. 1. ...
ErikHall's user avatar
  • 2,436
7 votes

What is the minimum complexity of summoned "food" that a person could live long-term on?

Your mage could live for a year or more on very little, and it's certainly doable for a month for your average healthy person. But this Scottish chap did over a year on tea, coffee, soda water and ...
Kilisi's user avatar
  • 26.5k
7 votes
Accepted

What is the minimum complexity of summoned "food" that a person could live long-term on?

The medical community has almost addressed this for you already: https://www.nestlemedicalhub.com/products/vivonex-plus Other than the soybean oil this is human nutrition distilled to it's most basic ...
Loren Pechtel's user avatar
7 votes

Could You Use Mitochondria to Power Your Cell Phone?

Mitochondria can provide about 190 mV. Some very advanced chips already work at these voltages in laboratory setting. There is about 190 mV difference between the interior of the mitochondria and its ...
Nightrider's user avatar
  • 2,037
6 votes

Reductive instead of oxidative based metabolism

A tail of two fluids What is a hydrocarbon world like? There are methane lakes on Titan. And rain and rivers! But water is actually more abundant on Titan: just dig a hole and once you get past the ...
Kevin Kostlan's user avatar
6 votes

What would be required to allow a human brain to function for thousands of years?

It's very hard for human brains stored in what is the state of the art containment vessel, vulgarly called human body, to be kept fully functional for 100 years. Dementia, various diseases, slowing of ...
L.Dutch's user avatar
  • 287k
6 votes
Accepted

What would be required to allow a human brain to function for thousands of years?

Sure, it's easy To make it a little bit of a challenge, let's not say "nanites." First of all you've got to deal with the effects of aging: shortened telomeres, cancers, natural loss of ...
causative's user avatar
  • 7,312
6 votes

On a planet whose waters are super rich in iron, could life forms use the iron as a basis for their skeletons?

Yes! There is a snail that uses iron (iron sulfides to be exact) as part of it's shells. While normally shells are calcium based. I don't know how it would work. I cannot say for certain that it is ...
Questor's user avatar
  • 1,681
6 votes

Effects of metal-augmented skeletons on behaviour and evolution

Everything you are looking for is right here on Earth? Limpets are a real life organism that contain what is perhaps the world's overall strongest biological material. Thier teeth are made of an iron ...
Nosajimiki's user avatar
  • 92.7k
6 votes

Could a (semi-)universal information-storing molecule exist?

No, biochemistry doesn't work like that If you want to have a "universal donor" that can influence genetic information of species developed on other planets you can forget about it. Even if ...
Negdo's user avatar
  • 2,283
6 votes

Replacing Light in Photosynthesis with Electric Energy

Your ideas concerning a nanoscale molecular motors based on macro scale electric motors are interesting. I’m not sure how feasible they would be, the possibilities of chemistry are almost endless so ...
Slarty's user avatar
  • 37.3k
6 votes

Replacing Light in Photosynthesis with Electric Energy

imagined that it would absorb magnetite as a part of its diet and the body would divide it into small fragments that would be transported to a special organ filled with small coils and spin around to ...
DKNguyen's user avatar
  • 11.1k
6 votes

Are there any alternative genetic systems which could allow for the development of emergent complexity?

“I'm currently trying to worldbuild a plausible alien species down to the level of basic biochemistry” The scope for novel molecules in chemistry is vast beyond imagination as there are more possible ...
Slarty's user avatar
  • 37.3k
6 votes
Accepted

Ammonia transporting blood

Water. Ammonia and water are fully miscible. They dissolve into each other easily in all proportions, so you don't really need any special carrier molecules. Higher temperatures will drive ammonia out ...
Logan R. Kearsley's user avatar
6 votes

Can a vampire carbonate serum to make blood soda?

Very likely not. When carbonating a water based solution, the CO2 will react with water to form carbonic acid. This will shift the pH of the solution to lower values. If this is OK and desired for ...
L.Dutch's user avatar
  • 287k
6 votes

Feasibility of a bio-engineered, floating tree lifeform in the Venusian atmosphere?

I worry that something the size of a tree may be very fragile. If it has a tiny leak it may start to fall. How about something smaller? How about an aerial version of a volvox colony. This would be a ...
Richard Kirk's user avatar
  • 8,588

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