Other Sciences

Does anyone know where I can get a device which measures the amount of gas (CO2) in a liquid (Cola), or even if such a device exists at all??? Please see my other thread about my proposed science fair topic for other info on why I need this device, and hopefully you can answer my questions as well. Thanks

Please don't answer any of the questions if you aren't reasonably sure you are correct. 1) Could man and dinosaurs have co-existed? 2) If the Earth received rain for 40 days and 40 nights, would not most of terrestrial life perish? 3) Can we prove that if the Earth was hit by another object of a large enough size, then the planet would experience a nuclear winter? Can we predict how long the winter would last? 4) Can dinosaur bones be carbon dated? 5) Have any human bones been found in the geological strata that hold the dinosaur bones? 6) Is there a "bible" of evolution and if so, what is the title? 7) Can you add anything to this di…

there is are many legends of giants in north America, which are now extinct. Captain Cooke took journal that he once encountered some of them and caught one, which escaped. I just wanted to know if there is more scientifically accepted evidence of large races of humans. Its not that far fetched in the case of those found in the graves of the mound builders, who were 8 feet tall. however it is unusual that they have double rows of teeth. Are these findings hoax, or are they credible? I did not find any info claiming that these discoveries were discounted, so i'm hoping some one may have more information. Not neccisarily on these particular findings of giants, but any …

By that I mean there are thirty one classes of science today. Which one class is the best, so if you decided to switch majors could you easily change without to much trouble? pjames

Hi. To turn 1Kg of water at 20ºC into ice at -10ºC, is this calculation correct? : Cooling the water 20ºC = 20 x 1KCal = 20 KCal Freezing 1 Kg = 80 KCal Cooling ice 10ºC = 10 x 500 Cal = 5 KCal Total = 105 KCalories must be extracted. How to calculate the same under 50 mm Hg vacuum ? Miguel

Hi. Torricelli's barometer is water in a tube, 34 ft (10.4 m) tall column. The space above the water surface in the tube is vacuum. Isn't the water surface supposed to boil at room temperature under that extreme vacuum ? What about the rest of the water column... progressively less boiling with depth ? And does that boiling water fill the vacuum space with vapor becoming no vacuum any more ? Then what? If vacuum is not perfect anymore, the water column starts decreasing its height? Miguel

Does any one has any personal experiences that eating organic food gives noticeable health benefits/improvements over conventional agrochemical-saturated, mass-farming food?

This might sound dumb; or paradoxical depending on how u look at it. We all know that light has the highest speed practically. Einstein enlgihtened us by telling us that anything at the speed of light has infinite mass and will be too heavy to move. He used the speed of light as a constant. BUT ! And a very big BUT too! How is it that light itself manages its speed ? Is there any explanation for this ? Or have I just lost it ?

Hi guys! Its been a long time since I've been here. I've been busy with my AS, and arranging a further maths course for me for my A level! Here is my question: In physics, we were taught that there were 6 (which we were then told 7) SI units, which are: m=meters s=seconds K=Kelvin kg=Kilograms mol=moles A=amps and later : cd=candela (a measure for luminocity) My question is: What about measure of angle? We can't use any of the SI units above to shop an angle, which is quite important in mechanics (the physics course where we were taught this). Thanks alot for your help guys!

In an experiment, we were told to make some casein by mixing vinegar with low cream milk. What is casein and the purpose of adding the vinegar?

I'm writing a story and for it, I want to know if rain (or precipitation rather) is necessary for life. If rain is just the cycle (and forgive me for not knowing the true technical terms for this) is just evaporation of the ground water into clouds that cause precipitation back to the ground, then do we really rely on rain? I know crops dry up if it hasn't rained for a long period of time, but if say today was the last day for the rain due to pollution or something, would we be able to survive? Could we not irrigate? Or is it vital for it to rain? On a further note, what could cause the end of precipitation?

i have two plasma balls (the cool plastic sphere things with the purple lightning inside that goes to your hand when you touch it) and a touch lamp (turns on in three brightness stages when you touch it). when i got the first plasma ball i turned it on and noticed a couple things. 1. my radio became very unhappy. nothing but static, no volume control, clock counting down by minutes... very strange. 2. my touch lamp ceased to be a touch lamp. it is now a regular lamp only without an on off switch. when you plug it in, its on, when you unplug it, its... im gonna assume i dont have to explain that one... can someone explain to me what exactly happened to cause e…

As summer break approaches (I have less than one day or school left, yeehaw!), the long-awaited season of freetime and vacation, I am greeted by a wealth of possibilities for things to do. Now, I know there are a million of those "what experiments can I do" threads, but all of them seem to be a little... bleak. There is also a sticky right above this post with some "quick and easy experiments," but it is rarely looked at, and even more rarely contributed to. In addition, it would be nice to have some more advanced projects/experiments out there for those of us who are left hungry for more than "quick and easy." Don't get me wrong, quick and easy is great, but I think …

Probabily should be in a physic's forum but..... I'm interessted in rocketry and weapon science.Can anyone give me any refrences on any good books on either subjet?

I seem to have this ability to hear certain wave lengths. I can hear the radiation coming from any TV set if the screen is totally white, and I can hear mobile phone microwaves at night. The mobile phone noise keeps me awake. Has anyone else noticed this noise? Pincho.

We're doing cathode ray's at school at the moment and there was mention of an "electron gun" naturaly this caught my attention. The teacher gave little information on it and left me pondering. I guess it would be similar to a CRT but with an open end. How much of a range would this thing have? But more importantly what would it be capable of doing! Would it build up a static charge on someone so as soon as they touch some metal they fry? Would it stream straight into them like high eneergy betas? I am just realy curious about this one ~Scott

Excuse me I understand the English language but this gives me trouble. Most science is observable with or without a telescope or microscope. Observe,study, hypothesis, theory then fact. Today observe,hypotheis theory. Whats different with todays scientific study against ancient science study? pljames

Absolute zero has been deifined. Is there an established "Absolute Highest Temperature" in the universe? I imagine this was at the Big Bang, but is there a constant limit to matter and energy now?

I've heard a few interesting theories relating to the fundamental reason why all living cells eventually deteriorate, and a new one occurred to me. First, I'll relate the most notable, which is based upon biochemical reasoning (don't worry, it's not hard to understand). Oxygen, being nearly the most electronegative of the elements, has a tendency to 'steal' electrons from other compunds. One theory states that cell aging is derived from the slow breakdown of individual molecules that eventually lead to cell death. A notable byciclist whose name eludes me won the Tour de France a few times and then was forced to retire due to a very rare illness. It was determined …

hey all i was wondering is there any sustance or element out there that expands when it comes in contact with acid like some sort of silly string or something, any thoguhts? thanx

Ok I was asked this question and I was kind of annoyed that I cannot figure it out on my own so my question is: Why doesnt lightning ussually accompany snow?

I was watching a documentary last night and Astronaut Story Musgrave said that not only has he witnessed UFO's but on 2 seperate shuttle missions he witnessed a snake like creature actually following the shuttle. So, do we think he's nuts? or just mistook something else that it could have been. He was extremely adiment when he said it was definetely alive. I normally would reject this idea until I read that back on Apollo 16 I think it was they went to the Moon and came back with bacteria that had been left there for 10 years with no shelter from the vacuum of space and they were still alive when they came back.

I douldn't find a specific catergory for this, but i was wondering qwould this go under general biology? neway when i'm outta skool i wanna do one of two careers Royal Navy or BioChemical Research, i've already had an interview with the carrers advisor at my skool, and i was wondering could neone here gimme a few pointers if they are in this profession? or know someone that is? thanks ppl

Simple question: Why are large parts of the planet flat, while others are raised and mountainous? Is it related to climate and wind/rain errosion over enormous emounts of time, or was the planet just formed this way?

An interesting report from NOAA concerning a severe geomagnetic caused by a solar flare on Friday. http://www.noaanews.noaa.gov/stories2005/s2437.htm Has anyone experienced any of the possible problems described in the article ?