I’m surprised I’ve got this done as quickly as I have, haha! I’m enjoying mutating some of the Lifers with these designs. Not all of them will have drastic changes like this, but boy am I having fun when they do :)
page 123 - I love it when patterns in the beach’s sand are reflected in the water. Not sure that’s what’s happening here or if that is something I have ever seen, but a cool thing to be sure.
The Miller-Urey Experiment was first conducted in 1952 to test the hypothesis of chemical origin of life. Until then it was believed that only life can create life. This experiment showed that the basic building blocks of life can be easily synthesised in the primitive earth environment. The experiment has since been replicated several times under varying conditions. Although nucleotides are not able to form till date, the building blocks of life like proteins and amino acids are formed very easily. This indicates that life can originate rather easily and it may not be too hard to find it elsewhere in the Universe (or even the Solar system for that matter).
Read the original paper here. It’s an easy to follow 2-page paper. Alternately, read a short summary given just below.
The experiment used water (H2O), methane (CH4), ammonia (NH3), and hydrogen (H2). Note that there was no oxygen (O2) yet in the Earth’s atmosphere as there were no plants to produce it. The chemicals were all sealed inside a glass flask connected to a larger flask half-full of water. The water in the smaller flask was heated to induce evaporation, and the water vapour was allowed to enter the larger flask. Continuous electrical sparks were fired between the electrodes to simulate lightning in the water vapour and gaseous mixture, and then the simulated atmosphere was cooled again so that the water condensed and trickled into a U-shaped trap at the bottom of the apparatus.
After a day, the solution collected at the trap had turned pink in colour. At the end of one week of continuous operation, the boiling flask was removed, and mercuric chloride was added to prevent microbial contamination. Using paper chromatography, Miller identified five amino acids present in the solution: glycine, α-alanine and β-alanine were positively identified, while aspartic acid and α-aminobutyric acid (AABA) were less certain, due to the spots being faint.
Think watching paint dry is bad? Watch pitch drip: World’s longest-running experiment sees 9th drop of tar fall in 84 YEARS
The world’s longest-running experiment has just had a 'breakthrough', after its ninth droplet of tar slowly gave in to gravity.
The droplet was captured by the University of Queensland’s live webcam, although the blob hasn’t yet entirely separated from its parent chunk of tar.
The experiment is listed in the Guinness Book of World Records as the world's longest-running laboratory experiment and was designed to show how seemingly solid objects can in fact be liquid.
Psya1 Research Methods: Strengths & Weaknesses of Experimental Designs
Psya1 Research Methods : Strengths and Weaknesses Of Experimental Designs Laboratory Experiments
In laboratory experiments researchers conduct the experiment in a specially controlled setting. Researchers control all the variables except the Independent variable (IV) which is the thing that is changed between the experimental conditions. Whatever effect the Independent variable has is called the
