Check out the LONGEST Lasting Experiments In The World! From the pitch drop experiment dropping after almost 100 years to some amazing other scientific experiments, this top 10 list of longest science experiments is incredible!
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10. The Framingham Heart Study
The Framingham Heart Study is a joint project between Boston University and the National Heart, Lung and Blood Institute. Starting in 1948, and still running to this day, its purpose has been to identify the common causes and characteristics that contribute to cardiovascular disease.
9. The Park Grass Experiment
The Park Grass experiment began in 1856, with the intent to discover the effects that using various fertilizers and farming techniques would have on hay yields from a field. The field itself is at the Rothamsted Experimental Station in Hertfordshire, England, and has proved to be an invaluable resource in learning about biodiversity.
8. Voyager 1
While the Voyager mission hasn't been running as long as most of the others on this list, it has easily traveled much greater distances and will keep on going, as a representative of our planet, far beyond our own lifetimes.
7. The E.Coli Long Term Evolution Experiment
For the past 30 years, scientists have been following the evolutionary changes of E.Coli across more than 68,000 generations. If the same experiment were to be conducted on humans, it would take more than 1 million years to get this far!
6. The William James Beal Germination Experiment
One of the world’s oldest experiments is called the William James Beal Germination Experiment. It began in 1879, and continues to this day. The purpose of this test was, essentially, to see how long seeds could be stored and still be able to grow when exposed to the right conditions.
5. The Beverly Clock
The Beverly Clock is an unusual experiment in the University of Otago in Dunedin, New Zealand. It was created in 1864 by Arthur Beverly and is unlike other clocks- because, despite running for all this time, it has never once been wound!
4. The Oxford Electric Bell
The Oxford Electric Bell is on display at the Clarendon Laboratory at Oxford University- where it has been since it was switched on in 1840. The bell still rings and has done so throughout its life- powered by a battery. The current makes a small metal ball oscillate between the two bells of the device, which create a constant noise- although you'd be hard pressed to hear it because it's kept within a thick wall of glass.
3. The Grant Study
The Grant Study, which was also known as the Harvard Study of Adult Development, began in 1938. Scientists wanted to track the health of a test group and hope they would find out the secret to living a healthy and happy life. If you haven’t guessed yet what it is, leave your answer below!!
2. Pitch Drop Experiment
The Pitch Drop experiment is one of the longest, and slowest, experiments ever devised. Based in the University of Queensland, Australia, it began in 1930 and was designed to capture blobs of pitch as they dripped down from the main bulk.
1. The 500 Year Microbiology Experiment
This final experiment hasn’t been running for as long as the others so far, but it is planned to continue for a very long time. The 500-year microbiology experiment began in 2014, and is, as the name would suggest, intended to last until 2514. It is, by far, the longest planned scientific experiment ever created and will look at the survival of microbes and biomolecules over century-long timescales.
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