Life Definition and 1000 Threads

We learned that life prefers to use glucose over other sugars (catabolite repression). 1) Why is glucose preferred? 2) Why do sperm use fructose instead of glucose?

Ok, I have been to these forums a lot in the past year or so and I have learned a lot and asked a lot. But recently my past year has just been a drag - it is my first year in university and I know that some or maybe even majority will say it is only first year. But I don't think it is that, I...

I've just finished my first year in engineering (Electronics and Electrical), and when I started out, I eventually wanted to do a Phd in mathematics because I soon realized that I loved mathematics and that I can grasp the intricacies without busting my head. I had dreamed of focusing on...

What are the little things that make you happy? I just realized one for me that seems funny to a former city kid: The day our pasture gets mowed is one of the better days of the year. The grass grows to four and five feet tall here, and as the spring progresses, the field sort of closes-in...

Where did "life" come from? There is something about this "big bang" theory that makes me not to accept it at all and that's: Life. Physicists have all tried to put together their observations and I mean observations only to come up with this big bag theory, but at the same time there exist...

When I was in college, I had some direction, even if it was just the pursuit of a diploma. Now that I'm done, I feel like I'm stranded in mid-ocean with no discernible wind or current pushing me in any direction. Admittedly, this is my fault. I had a narrow focus and was concerned only with...

Anyone lived in a timber home (house made out of weatherboard)? What is it like?

http://www.seenontv.com/prod-pages/free_money_to_change_your_life_book.html http://www.mlesko.com/g2/store.htm

After the initial shock and excitement, do we commandeer the the planet and take if for ourselves anyway? Pollute it with Earth species or extremophiles? Will an environmental impact study then be required? And if they are more advanced, do we hide and hope they didn't see us lest they do...

The soil on Mars has been found to have nutrients which would be conducive to supporting life: http://www.msnbc.msn.com/id/25396378/ All the more reason for us to go and start farming over there.

of late i have discovered the beautiful smell that my lemon myrtle can give when i rub the leaves together between my hands. It got me thinking, what can i do to get this smell throughout my house? i have thought of two ideas so far (iam open to any others): dry the leaves and turn it into an...

What does the presence of life on Earth imply about the chance of life existing on other worlds? Can one assume, with high probability, that despite Earth's seeming singularity of life, there is life elsewhere in our (assumed finite) universe? In our (assumed infinite) universe? A...

http://www.quixtar.com/ I saw that Amway now has a slick advertising campaign running on TV. I don't have the time to comment on this in detail right now, but I can say that I got involved in Amway when I was 18 years old. I had a downline of over 50 people, including one of the richest men...

I was wondering if there was any resource out there that had a complete tree of life for all the species.

I find myself very interested in Cosmology and would consider doing a PhD in the field, however I am not sure if I would like to be an academic or not. Given the relatively few technical applications of Cosmology, would it be wiser for me to enter a field with greater possibilities for...

How can we justify that one life is more important than Another's? I've been wondering about this for a while now. I've tried tackling this from a religious and scientific standpoint. For religion I've looked at the Indian Caste system and at the Christianity belief that we should put...

Nearly every machine in the factory decides to self destruct on my watch, i loose my Internet connection for no apparent reason, there is a pool of water in the kitchen because my fridge decided to switch itself off, and all the stuff inside looks perished. All in all a good day as no one...

I just finished my first year of a 4 year physics degree, and it made me realize that although I love physics and I am really good at it, but I do not want to be a physicist. This has a lot to do with my first taste of research life with a condensed matter group I had been helping. It made me...

questions about life of gamma ray particle question-are gamma ray particles unchanged after gamma ray burst 13 billion years ago? question-are changes detected not due to travel through normal space, scattering? changes due to dark matter/energy? question-positronium decay at end universe...

I was doing some reading on the effects of air blasts from asteroid impacts when I realized that I've never seen any data of the potential effect on marine life. Since sound travels farther and faster in a liquid, wouldn't an asteroid impact in a large ocean (liquid) have a more profound...

I work at a LAN center, and we recently got an In The Groove arcade machine. (http://www.freewebs.com/bhsddr/In%20The%20Groove%202%20dedicated%20cabinet.jpg" ) It's great, but the only problem is that there is a basement underneath us, and the building is fairly old. When people play on it...

http://www.practicalfishkeeping.co.uk/pfk/pages/item.php?news=1669 Now that the turtle is living in a safe environment, he is really coming out of his shell.

http://img210.imageshack.us/img210/1775/part1ep4.jpg http://img72.imageshack.us/img72/755/part2ho2.jpg

To be.

Okay, I'm not an idiot, but can someone explain to me (in common layman's terms) what entropy is? And it's relation to life?

I especially like this part: & lastly, universal health care would probably reverse the trend: http://www.iht.com/articles/2008/03/23/america/health.php

Could there be a civilised way to live without central government? suppose some catastrophe wiped out your countries government, would there be a priority to replace it?

I've actually been reading a number of things. First, I read Lars Eigner's "On Dumpster Diving" and afterward, a few existentialist documents paired with some Budhist doctrine. All of philosophy aims to give meaning to human life...and apparently society, at the same time, implements meaning...

In your opinion, what are my options in life based on my pedigree alone Just turned 24, graduated 1.5 years ago with a degree in physics/astronomy. I'm in between jobs. I have a 2nd interview with a financial software company that deals with hedge funds/private equity, banks, etc. I have a...

Hi everyone. I'm just wondering - I've heard lots of rumors about physics grad. school, and how hard it is, etc. I have no problem dedicating myself to studying, but am worried about family issues. What I'm wondering is - - how many hours on average per week will I be working? 40, 60, 80...

Predictability: Everything in this world has a certain amount of predictability; some call it “odds”. I’m still young at 33, but I find it boring and redundant to even bother doing a lot of things in my life now. In some cases, it irritates me when someone asks me for my advice, or if someone...

I'm thinking about studying for mechanical engineering, but I'm slightly discouraged by the amount of work people say they have to put forth. but is there really that little amount of free time to hang out with friends and do things you enjoy? i mean, will i still have to for my gf and what not...

This is not exactly physics, but I'm interested in a physicists opinion: Oxygen is considered a very active substance, very dangerous to many physiological processes of the cell. Even though or maybe as a result of this fact, we know that all life on Earth thrives on reach in oxygen...

Homework Statement Evaluate Int{(y+yz cos(xyz))dx + (x^2+xzcos(xyz)dy + (z + xycos(xyz)dz} along the ellipse: x = 2cost y = 3sint z = 1 2pi=>t>=0 (its a line integral problem) Homework Equations The Attempt at a Solution I have tried the following things: First, i tried plugging...

Hey all, I am in the process of starting up a herb business. It is very small and I will only be selling to one or two local restaurants. Funnily enough I phoned them up and they gave me the all clear. My question is, even though it is not a factor in this case, why would a products life...

Can anyone ever be free of modern day life, one can talk up how great it is to live in this age, but it seems to me there is less and less freedom to do as one wants, sure one has the freedom to become a millionaire but is that as good as being totally free, if modern day medicines and health...

An astronaut on the surface of Mercury fires a cannon to launch an experiment package, which leaves the barrel moving horizontally. Assume that the free-fall acceleration on Mercury is three eighths that on the Earth. (a)What must be the muzzle speed of the package so that it travels...

Another small but strong group of photos for this contest. Please vote for the picture that best represents our theme - Still Life 1. Mech_Engineer 2. larkspur 3. turbo-1 4. ZapperZ 5. waht http://img131.imageshack.us/img131/3520/viking1lg7.jpg 6. glondor...

Hi My teacher told me that its because of binding energy that we and everything around us exist. I have presented this viewpoint in my blog: http://hubpages.com/hub/The-energy-responsible-for-our-existence---BINDING-ENERGY" Please visit it and give comments. If you find mistakes please...

[FONT="Comic Sans MS"]Still Life This is the photo version of the still life paintings. If you have seen still life paintings, or even have done one yourself in an art class, then you have an idea of what the theme is. However, this time, instead of taking your your paint brushes and canvas...

You might like this... Is life getting you down Mrs. Brown? Garth

If a good sample of dinosaur DNA were found intact, could we make a clone? I know that the chances of finding intact complete DNA of a dinosaur is slim. A researcher recently claimed to have found likely dinosaur dna, although not complete enough for any hopes of cloning or anything. The...

If you have to show off one thing/achievement in your life, what would it be? It could be anything; cars, house, job, awards.

http://www.wired.com/science/discoveries/news/2007/12/time_hackers?currentPage=all" [FONT="Times New Roman"]So he loaded the family's blue minivan with portable power supplies, monitoring equipment, and three HP 5071 cesium clocks. With his three kids and some camping gear in tow, he drove the...

Help creating a dif. eq. for a real life model.help? A 30 year old woman accepts an engeineeering position with a starting salary of $30000 per year. Her salary S(t) increases exponentially, with S(t)=30e^{\frac{t}{20} thousand dollars after t years. Meanwhile, 12% of her salary is deposited...

Do you think that the daily movement of a student from home to university then again from university to home is an example of simple harmonic motion ? Please give the arguments in support of your point of view.

Homework Statement An extra solar planet is discovered that is 500 light-years away. It is found through spectroscopic analysis that the abundance of potassium - 40 to potassium - 39 on the planet is 99.9%. Assuming that the planet was created with equal amounts of the two potassium isotopes...

i am a junior and just transferred to my new school. i don't want to end up really awkward and lonely and have horrendous hygiene like a couple of my professors. I'm not THAT introverted, I've met plenty of people and made a few aquaintances but no real "friends", and small talk all right (i...

If we didn't have money we would spend lots of time bartering deciding if a sewing machine is worth a loaf of bread plus a bottle of tomato ketchup etc. From a scientists point of view doesn't money stop us from wasting time and effort (expending energy) and from arguing/fighting one...

Structural integrity is a significant matter for aerospace engineers. The Air Force is apparently investigating the possibility that Boeing is liable for the structural "defect" in F-15's. Life extension is a critical matter in aerospace and nuclear industries as highly engineered systems...