Elite Engineer

This is a statement, not a question. I'm interested in your own opinions. The Flynn Effect states that the general IQ of the population increases over time; IQ scores in recent history have shown this trend to be true. However, what if those IQ tests are potentially biased, lacking in logical problem solving and critical thinking skills? What if those tests are merely amplifications of generalizations that society has come to? Looking at the lack of logical and critical problem solving examples in todays society, and the increase in stagnant information overflow, I boldly say its true. Here's some examples of what I'm saying: Prior to Rutherford and Einstein, most of society did not know what an atom was. After 1905, society generally "knew" what an atom was, but had no critical knowledge of WHY it behaves the way it does, no logical/ mathematical interpretation. Society acknowledged its existence. Preceding Crick and Watson, society as a whole didnt know what DNA. After 1953, people generally knew "what" DNA was, but they did not know how or why it functioned the way it did, etc, etc. Does the general IQ appear to proportionally increase with time, because people in later generations merely "know" more things than people preceding them? (i.e knowing what an atom, knowing what DNA is, etc, etc.) Are these IQ tests relying on the comparison of what later generations know to older generations?I believe this to be true, and it shows the lack of societal push for critical thinking, and the useless accumulation of "information". -EE

Pressurized hydrogen is known to leak through its container due to its incredibly small size. Why is it that photons being much, much smaller than hydrogen atoms cannot shine or "leak through" solids/ containers? Just for comparison of size between hydrogen atoms and photons: hydrogen atom mass: <1.0 x 10^-26g photon mass: <1.0 x 10^-35g -EE

A Danish biochemist (name escapes me) believed he has abiotically synthesized the precursor to the original lifeform that eventually led to bacteria, eukaryotes, etc. A droplet of oil was mixed into a petri dish, causing it to aggreagate, acting as a protobiont or lipid bilayer. Nex thydrophilic molecules were injected into the oil droplet. When the hydrophilic molecules reacted with the surrounding water, it propelled the oil droplet all around the petri dish (metabolism) even allowing it separate at times (replication). Once other oil droplets were added, collisions ensued resulting in the oil droplets sharing their internal chemical strucutres with each other ( hereditary informnation). The Danish biochemist claims that this aggregation of oil is #1.) Organized, and #2.) Self-replicating. It has a metabolism, replication and "hereditary info"....do any of you believe this may actually be the precursor to life? ~EE

All good points. I never thought of a mutual symbosis as to explaining why bacteria and eukaroytes still live together. What do you think about the "fatal to humans" bactera (i.e. E-Coli, Tetanus, etc.). Do you think its a matter of time till they have a mutation that's deadly enough to wipe us out. Though it doesn't look too promising, as I can only think of two cases where a bacteria/ virus (ya I know its not living) drastically affected the population, those being The Black Death and Spanish Flu of 1918.

Awesome man thanks! This is a superb design, everyone on this thread has been contributing alot thanks!

shouldnt the blowers be positioned where there is the most weight, or will the pressure of air be evenly distributed?

Im pretty certain this is a science forum, not The View.

Bacterial cells accomplish mitosis (replication) in 30 minutes. Human cells require 24 hours to accomplish mitosis. Mutations in DNA occur roughly 1 in 100 million DNA replication cycles. This means DNA in one day bacteria replicate 48 more times more than humans do. Now take the existence of the homo sapien, about 600,000 years relative to the existence of bacteria, about 3 Billion years. How is it that humans remain alive relative to the huge difference in bacterial mutations relative to human mutation. Sure some mutations are bad, possibly fatal, but in the course of 3 Billion years, I would think bacteria would have been the end all be all upon Earth, and would have wiped out all other existence. Your thoughts, EE

I assume you're talking about F=ma, but I don't think it applicable b/c the air is exiting at a fixed speed of 200 mph (89.41 m/s), and not accelerating? would that be used to increase the flow rate of air or to direct the output of air so the hovercraft could move laterally? I apologize for bombarding you with a million replies, but I applied your equation and this is what I got: Mass of one cubic foot air @ STP= 0.036kg Exit speed of air = 89.41m/s F= m*v = (0.036kg)*(89.41m/s) = 3.2 N does 3.2N sound right for a leaf blower? If so wouldn't I need about 20 leaf blowers to support a 75kg person?

I'm currently building a hovercraft, with two leaf blowers. I need to know the trust of each leaf blower to know how/where to position them on the hovercraft. Both are identical models (craftsman, 200 mph, 430 cfm/ each). I'm a bit stuck on how to convert the CFM to thrust to know how heavy someone can be for it to work properly. Thanks, EE

What I meant by not "not 100% of energy can be transfered" was like combustion in a cylinder. Radiant heat is lost (like was EdEarl said), and some of the energy is transferred to mechanical energy. But studiot, you may have answered my question. If kinetic energy can transfer 100% to potential energy, and transfer 100% of potential back into 100% (at least dealing with a pendulum-like system) kinetic energy, then I guess we could say kinetic-potential and vice versa in pendulum-like systems are the most energy efficient, as they conserve the most... right?

Well no, I was hoping someone on here would have some theoretical knowledge of this or did some sort of related research.

We all know that 100% cannot be transferred from one system to another. However, what if different forms of energy can efficiently transfer more energy than others? For example: Can kinetic energy transfer more energy than chemical energy? Can Thermal energy transfer more than mechanical energy? Can electric energy transfer more efficently than magnetic energy etc. -Or is energy nondiscriminatory in all its forms, and transfers the same regardless of what form it is in?

Why is it, that the simple equation "a = bc" explains so many functions/behaviors in our world? It explains Newtons Second Law, the partial pressure of a soluble gas (Henrys Law), the force of a spring, ph of an acidic/alkaline solution, motion and static equations, it goes on continously...So why does this simple equation explain so many workings in our world? How can the multiplication of two numbers so universal to so many different systems?

If by strongest "gravitational pull", it would be a blackhole(s), which has infinite mass, and gravitional pull so strong, not even photons can escape their gravitional force.

There is an equilibrium equation you can use to find the certain variables you're looking for, but you're going to need exact concentrations: Δfaq/CA=KA(Δfmax-Δfaq) Δfaq is frequency value obtained at equilbrium at each concentration (rate) CA is concetration KA is the slope of the equation. -with this you'll be able to find a curve of the antibody appearance. you're going to want to read mostly research papers, my best guess, but find some textbooks if you can, and yes ANTIBODY KINETICS is waht you're looking for. Here's some helpful links too if you'd like: http://www.ncbi.nlm.nih.gov/pubmed/19800445 ww.attana.com/wp-content/uploads/2013/01/AE01-03-KineticaAffinity_MAbs.pdf

Wouldn't the Sun's deadly expansion take millions upon millions of years to affect us? I see the human race becoming extinct before we get to year 10000, its happened to every race, its going to happen to us too. I believe the Dyson Sphere argument is for when the population of Earth exceeds 15 billion, by then where going to need ALOT more power and materials...so they better start formulating now. BTW if your going to mine for asteroids, you might as well have unlimited power in space.

@Mr. Monkeybat, however if you coat the inside of a chamber with carbon monoxide or carbon dioxide, it creates an oxide coating, making a nearly perfectly sealed container for the hydrogen.

I'm beginning to prepare for an annual fourth of July firework show for a family get together. I have about 4 lbs of Potassium nitrate, and tons of sucrose at hand. I looked online and powdered dye is quite expensive ($65+), so I was wondering...would adding ground colored chalk to the KNO3 + sugar mixture cause the smoke to be colored? -cheers

How far do you think modern engineering and astrophysics are from constructing a fully operational Dyson Sphere, given economic issues, man power, limitation of modern day science?

Larger market for Xbox and PS3..simple economics mi compadre

Like Genecks said, a kind of research (especially as in-depth as yours) is going to require a PhD, which is no easy task but still very possible. Take your interest in research setp by step. Once you obtain your BS go into research and see if you like it then. I personally hated research. I thought it was going to be all about discovering new bacteriophages or engineering some kind of new genetic mutation; when in reality it was making gels, counting seeds, running centrifuges etc. Also, any kind of research you carry out will probably be joined with a professorship. my 0.02

Depends, what area of physics do you like? Motion, energy, wave frequency? I remember a while back in my Dynamc Systems class, we had to build a spring loaded device, calculate its force, fire a projectile from it, and calculate the distance and speed to see where the object would land.

I would think that just because there was one simultaneous explosion that doesn't mean that there can't be different rates of "expansion" for different masses in space...just a thought.

Isn't this a topic for physcology/ sociology, not a medical science topic? -do you even read, bro?