Forum Menu - Click/Swipe to open
 

Dont Judge a book by its cover! Miracles of the Quran

You have contributed 0.0% of this topic

Thread Tools
Topic Poll
» I'm amazed
100%
6 members | 0 guests
» Science is far more advanced
0%
0 members | 0 guests
» Not Sure
0%
0 members | 0 guests
Appreciate
Topic Appreciation
Taqwah, sweetmuslimahk1, Seifeddine-M, abu mohammed, Taalibah
2 guests appreciate this topic.
Rank Image
Seifeddine-M's avatar
London
4,762
Brother
4,175
Seifeddine-M's avatar
#61 [Permalink] Posted on 25th January 2011 12:33
Different Points In The Rising And The Setting Of The Sun

"No! I swear by the Lord of the Easts and Wests that We have the power." (Qur'an, 70:40)

"Lord of the heavens and the earth and everything between them; Lord of the Easts." (Qur'an, 37:5)

"The Lord of the two Easts and the Lord of the two Wests." (Qur'an, 55:17)

As can be discerned, the words east and west are used in the plural sense in the above verses. For instance, the word "mashariq," used in the first verse for "east," and the word "magharib" used for "west," are in plural form, indicating that there are two of each. The words "mashriqayn" and "maghribayn" in the last verse are used for two easts and two wests. "Mashariq" and "magharib" also mean the place where the Sun rises and sets. The above verses are therefore referring to different sites of the dawning and closing of the day. It is also worthy of note that the vow is taken by the Lord of "the easts and wests" in the first verse.

The axis around which the earth revolves itself is at an angle of 23� 27'. Due to that angle, and the spherical shape of the Earth, the light rays from the Sun do not always strike it at the same angle. This means that since the Sun's rays fall on that area at different angles, someone far away from the equator will observe the Sun rising at different points in the east and setting at different points in the west. The further away from the equator that person is the more different points he will identify for the dawning and closing of the day.

Someone at the equator, however, will always observe that the Sun rises exactly in the east and sets exactly in the west, since the Sun's rays always fall perpendicularly there. Bearing in mind that the Arabian peninsula is not that far from the equator, it would appear impossible for such an observation to be made there. That is because someone in that region would see that the Sun always rises at the same point, and always sets at the same point. The expression regarding east and west in the above verses may be indicating the Sun rising and setting at different points. (Allah knows best.)
report post quote code quick quote reply
+1 -0Winner x 1
back to top
Rank Image
Seifeddine-M's avatar
London
4,762
Brother
4,175
Seifeddine-M's avatar
#62 [Permalink] Posted on 25th January 2011 12:35
The Truth Of Destiny

"But you will not will unless Allah wills. Allah is All-Knowing, All-Wise." (Qur'an, 76:30)

As a result of experiments he performed in 1973, Professor Benjamin Libet, a neurophysiologist at the University of California, revealed that all our decisions and choices are set out beforehand, and that consciousness only comes into play half a second after everything has been determined.44 This is interpreted by other neurophysiologists as meaning that we actually live in the past and that our consciousness is like a monitor which shows us everything half a second later.

Therefore, none of the experiences we perceive are in real time, but are delayed by up to half a second from the real events themselves. Libet carried out his research by making use of the fact that brain surgery can be performed without the use of narcosis, in other words while the subject is fully conscious. Libet stimulated the brains of his subjects with small electrical currents, and when they experienced a perception that their hands had been touched the subjects said that they had felt that "touch" almost half a second before. As a result of his measurements, Libet arrived at the following conclusion: All perceptions are normally transmitted to the brain. As these are subconsciously evaluated and interpreted, the ego is unaware of anything. The information that appears before our minds, in other words that we can be aware of, is transmitted to the cortex, the seat of consciousness, after a certain delay.

The conclusion from this may be summarised as follows: The decision to move a muscle takes place before that decision reaches the consciousness. There is always a delay between a neurological or perceptual process and our becoming aware of the thought, feeling, perception or movement it represents. To put it another way, we can only be aware of a decision after that decision has been taken.

In Professor Libet's experiments, this delay varies between 350 and 500 milliseconds, although the conclusion that emerges is in no way dependent upon those figures. Because, according to Libet, whatever the length of that delay-it makes no difference whether it is great or small, whether it lasts an hour or a microsecond-our material life is always in the past. This demonstrates that every thought, emotion, perception or movement happens before reaching our consciousness, and that proves that the future is entirely outside our control.

In other experiments, Professor Libet left the choice of when the subjects would move their fingers up to them. The brains of the subjects were monitored at the moment their fingers moved, and it was observed that the relevant brain cells went into action before the subjects actually took the decision. To put it another way, the command "do!" reaches the individual, and the brain is readied to perform the action; the individual only becomes aware of this half a second later. He or she does not take a decision to act and then performs that action, but rather performs an action predetermined for him or her. Yet, the brain makes an adjustment, removing any recognition that the individual is actually living in the past. For that reason, at the moment we refer to as "now," we are actually living something determined in the past. As already discussed, these studies manifest the fact that everything happens by the will of Allah, as revealed in Surat al-Insan 30.


Note:
44. Benjamin Libet,"Unconscious cerebral initiative and the role of conscious will in voluntary action," Behavioral and Brain Sciences, 1985, 529-566.

report post quote code quick quote reply
+1 -0Winner x 1
back to top
Rank Image
Seifeddine-M's avatar
London
4,762
Brother
4,175
Seifeddine-M's avatar
#63 [Permalink] Posted on 25th January 2011 12:38
Black Holes

The 20th century saw a great many new discoveries regarding celestial phenomena in the universe. One of these entities, which has only recently been encountered, is the Black Hole. These are formed when a star which has consumed all its fuel collapses in on itself, eventually turning into a black hole with infinite density and zero volume and an immensely powerful magnetic field. We are unable to see black holes even with the most powerful telescope, because their gravitational pull is so strong that light is unable to escape from them. However, such a collapsed star can be perceived by means of the effect it has on the surrounding area. In Surat al-Waqi'a, Allah draws attention this matter in this way, by swearing upon the position of stars:

"And I swear by the stars' positions-and that is a mighty oath if you only knew." (Qur'an, 56:75-76)

The term "black hole" was first employed in 1969 by the American physicist John Wheeler. Previously, we imagined that we were able to see all the stars. However, it later emerged that there were stars in space whose light we were unable to perceive. Because, the light of these collapsed stars disappears. Light cannot escape from a black hole because it is such a high concentration of mass in a small space. The enormous gravitation captures even the fastest particles, i.e. the photons. For example, the final stage of a typical star, three times the mass of the Sun, ends after its burning out and its implosion as a black hole of only 20 kilometres in diameter! Black holes are "black," i.e. veiled from direct observation. They nevertheless reveal themselves indirectly, by the tremendous suction which their gravitational force exerts on other heavenly bodies. As well as depictions of the Day of Judgement, the verse below may also be pointing to this scientific discovery about black holes:


"When the stars are extinguished," (Qur'an, 77:8)

Moreover, stars of great mass also cause warps to be perceived in space. Black holes, however, do not just cause warps in space but also tear holes in it. That is why these collapsed stars are known as black holes. This fact may be referred to in the verse about stars, and this is another important item of information demonstrating that the Qur'an is the Word of Allah:


"[I swear] by Heaven and the Tariq! And what will convey to you what the Tariq is? The Star Piercing [the darkness]!" (Qur'an, 86:1-3)


report post quote code quick quote reply
+1 -0Winner x 1
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#64 [Permalink] Posted on 5th October 2011 15:07
Youtube Video
report post quote code quick quote reply
No post ratings
back to top
Yasin's avatar
UK
6,700
Brother
945
Yasin's avatar
#65 [Permalink] Posted on 6th October 2011 06:08
Salam, sorry, option 1 of the polls = question?
report post quote code quick quote reply
No post ratings
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#66 [Permalink] Posted on 10th November 2011 16:07
report post quote code quick quote reply
No post ratings
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#67 [Permalink] Posted on 10th November 2011 16:11
Youtube Video
report post quote code quick quote reply
+1 -0Winner x 1
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#68 [Permalink] Posted on 23rd February 2012 09:48
Youtube Video


Below is from the uplaoder of the video

PRECISE MENTIONING OF "BLACK HOLES" BY THEIR NAME AND FUNCTION IN THE NOBLE QURAN!:
www.answering-christianity.com/black_holes.htm

Al-TAREQ, THE PIERCING STAR AND SUPERMASSIVE BLACK HOLES:
www.quranandscience.com/islam-and-science-universe/69-the....

PLACE WHERE THE STARS FALL:
www.quranmiracles.org/articles.asp?id=24

PULSAR STAR AND AL-TAREQ:
mahjoorquran.blogspot.com/2006/11/sura-86-al-tariq-by-arn....


I SWEAR BY THE STARS' POSITIONS-AND THAT IS A MIGHTY OATH IF YOU ONLY KNEW:
www.miraclesofthequran.com/scientific_37.html

************************************************************
The following video description has been copied from the original uploader (discoverislam100)
Have you seen some Islamic videos claiming that black holes are mentioned in the Qur'an, but for some reasons you were not convinced? After watching this video, I'll guarantee that you'll ask yourself 'how did Muhammad (P) know about supermassive and stellar black holes?!

In fact, the Qur'an describes this phenomenon (Black holes) more accurately, as you will see and admit!

No arm twisting; see what have scientists said about black holes, and compare their information to the Qur'an verses.

I have also provided the Arabic-English translation of key words mentioned in the verses. The translations of the words are snapshots from the Al-Mawrid dictionary.

Note: The most interesting information is in the second half of the video, but you better not miss a bit!

IF YOU ARE SUSPICIOUS ABOUT ANY OF THE SCIENTIFIC INFORMATION, YOU CAN INSERT THE EXACT TEXTS INTO GOOGLE SEARCH BOX, AND SEE THE RESULT.
***********************************************************
Here are the links:
1:
avaxhome.ws/video/bbc_the_sky_at_night_black_holes_and_bl....

2:
hubblesite.org/explore_astronomy/black_holes/encyc_mod3_q...

3:
www.dailyrecord.co.uk/news/editors-choice/2010/01/08/how-....

4:
www.upi.com/Science_News/2008/10/02/Study-finds-the-sun-i....

5
science.nasa.gov/astrophysics/focus-areas/how-do-stars-fo...


6
science.nasa.gov/astrophysics/focus-areas/black-holes/

7
amazing-space.stsci.edu/resources/explorations/blackholes....

8
www.spacedaily.com/news/blackhole-05i.html

9
www.cosmosmagazine.com/news/2710/most-violent-black-hole-....

10
onorbit.com/node/1083

11
news.bbc.co.uk/2/hi/7148671.stm

12
science.nasa.gov/science-news/science-at-nasa/2003/09sep_... 13
www.scientificamerican.com/article.cfm?id=strange-but-tru....


14
www.jb.man.ac.uk/~pulsar/Education/Sounds/sounds.html

Link 15: The translator site. Here is the word al-khounnas:' الخنس'
www.baheth.info/
report post quote code quick quote reply
+1 -0Winner x 1
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#69 [Permalink] Posted on 5th March 2012 14:43
Science and Sunnah: The Genetic Code


Some Muslim thinkers do not advocate the interpretation of the Qur'an or the Sunnah in terms of scientific terminology. However, the writer believes there is nothing wrong in attempting to understand or interpret Islam in the light of modern knowledge. Through this article, the writer wants to encourage freethinking and stimulate research ideas among Muslim scholars, scientists, and students so that Muslims' understanding of the Qur'an and the Sunnah can be furthered.`Abdullah ibn Mas`ud (may Allah be pleased with him) narrated that Prophet Muhammad (peace and blessings be upon him) said,

"Verily, the creation of each one of you is brought together in his mother's belly for forty days in the form of seed, then he is a clot of blood for a like period, then he is a morsel of flesh for a like period, then there is sent to him the angel who blows the breath of life into him and who is commanded about four matters: to write down his means of livelihood, his life span, his actions and whether happy or unhappy. By Allah, other than Whom there is no God, verily one of you behaves like the people of Paradise until there is but an arm's length between him and it. And that which has been written overtakes him and so he behaves like the people of Hellfire and thus he enters it. And one of you behaves like the people of Hellfire until there is but an arm's length between him and it. And that which has been written overtakes him and so he behaves like the people of Paradise and thus he enters it." (Al-Bukhari and Muslim)This hadith deals with the creation of human beings, which is mentioned in great detail in the Qur'an. However, the astounding matter in this hadith is the angel who blows the breath of life into the embryo and writes down four matters regarding the would-be person:

1. Means of livelihood
2. Life span
3. Actions
4. Whether happy or unhappy


The Hadith Precedes Science


Before the scientific discovery of the genetic code and the awarding of Nobel Prizes to its three discoverers in 1968, it was impossible to understand this hadith scientifically. In the 1990s, we were able to unravel the genetic code with regard to a person's inheritance of certain disease-carrying genes. This information may tell us about an individual's probable life span and whether he or she will be happy or unhappy.
Science is yet to discover the genes responsible for a person's rizq (food habits, dietetic profile, etc.) and actions or behaviors, such as type A, B, or C personality.


In the present article, the writer is attempting to show the current knowledge concerning the ability to perform genetic screening in order to understand a person's inheritance of, or susceptibility to developing, a certain disease through the study of that person's genes.


Our knowledge is still incomplete and we are very far away in attaining the knowledge about the four matters mentioned in this hadith. Inside the nucleus of a living cell, there are 46 chromosomes which are visible only when the cell divides. These chromosomes are made of deoxyribonucleic acid (commonly known as DNA). A certain length of DNA is called a gene, and the length of DNA that codes for complete synthesis of a protein is also called a gene. Along the 46 chromosomes of every human cell, there are some 100,000 genes.


The US government is funding a $3 billion, 15-year Human Genome Project (HGP), under the joint leadership of the National Institutes of Health (NIH) and the Department of Energy (DOE). That project will allow scientists to know exactly where on our chromosomes each of the 100,000 genes resides. Among these 100,000 genes, there are a few lethal ones.


Every person has a unique set of seven or eight deadly genes. They are usually hidden, but in the wrong environment or in combination with certain other genes, they can express themselves in dangerous ways. Some families carry genetic diseases for generations and they know what type of lethal genes they carry. Most people do not know if they carry any genetically defective genes or not.

A Genetic Blueprint: Is It Possible?

In the near future, it will be possible to get a blueprint of our genetic inheritance realizing the most likely cause of our own death. This test can be performed by walking into a physician's office and giving a blood sample with a finger prick. The result of the test will reveal if a person has any defective genes that will cause a certain disease or not.


Most of the adult-onset diseases involve several genes. For example, there are at least 17 genes responsible for just one aspect of coronary heart disease (CHD), and these genes express themselves only under certain conditions. For most of the genetic diseases, it is impossible to predict with certainty. Geneticists now say that diabetes, hypertension and cancer run in families. In other words, these diseases are genetically inherited.

Unanswered Questions

There are two important questions, which have not been answered so far:

1. Is knowledge of the genetic information itself potentially hazardous to the individual?
2. Will institutions misuse that knowledge to promote their own dominance and control?

There are two types of tests:

1. Prenatal tests that inform future parents of a child's chances of inheriting a condition that is carried by one of the parents or has caused the death of a family member.
2. Genetic screening tests that tell the adults about their own genetic destiny.

But do we really want to know? Are we willing to learn the details of our genetic destiny - especially when it involves diseases for which there is no cure? Are we capable of understanding the uncertainties inherent in this high-tech fortune-telling?


Adult polycystic kidney disease (APKD) comes late in age and causes a degenerative condition of the kidneys, resulting in the gradual loss of kidney function. It is carried on a single, dominant gene. If a man has this disease, then his son has a 50 percent chance of having that gene, and if he has two daughters, their chance of having the disease is also 50 percent.

The genetic test only tells whether a person has the gene that causes the disease, but it does not tell whether that person will get the disease in his UOs or in his late 60s. No treatment exists to prevent kidney failure in polycystic kidney patients.

There is a certain amount of unwillingness on the part of humans to know their future. However, there are individuals who have taken the tests for the occurrence of Huntington's disease - a neurological disease involving a progressive and untreatable brain and muscle degeneration with symptoms that usually show themselves in the 40s. The chances of inheriting this disease-causing gene are also 50 percent.


Nancy Wexler of the Hereditary Disease Foundation (HDF) says,

"If the information is limiting, enervating, depressing, if it tears at your self-esteem, if it gives you nothing to do, it might be better not to know."

Wexler devoted her professional life to the search for the gene responsible for Huntington's disease, which killed her mother and of which she and her sister are at risk.


Scientists stress that the results of genetic testing are ambiguous; genes alone do not determine a disease's prognosis. One can say whether or not an individual appears to have the gene, and those who have the gene have gone on to develop the disease. But one cannot say anything about when the disease will start and what the course of the disease or the relevant aspects of the illness will be.


The danger comes when imprecise tests are used in order to predict the future and when institutions actually use them to construct the future. For example, this applies when:

� employers refuse to hire or train individuals at high risk of dying in their prime,
� health insurance companies insist on knowing the genetic profiles of their potential subscribers before paying for preexisting genetic conditions,
� schools require a permanent genetic record to anticipate which children will exhibit behavioral problems or learning disabilities.

There is also the danger of using the genetic tests for purposes of eugenics. Eugenics means the deliberate manipulation of the gene pool with the idea of creating a master race. Under this approach, defective people walking around may not be allowed to reproduce for the betterment of society.


Many of the conditions that will be uncovered through genetic studies are not life-threatening, but might not fit into some societal scheme (e.g., genetic dyslexia, genetic shyness, genetic arrogance, and genetic left-handedness).




Dr. Ibrahim B. Syed is a clinical professor of medicine at the University of Louisville, School of Medicine. He is president of the Islamic Research Foundation International, Inc. (IRFI), Louisville, Kentucky, USA.
Courtesy: www.islamonline.net/servlet/Satellite?c=Article_C&cid=126...
report post quote code quick quote reply
+1 -0
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#70 [Permalink] Posted on 26th July 2012 11:55
report post quote code quick quote reply
+1 -0Like x 1
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#71 [Permalink] Posted on 2nd August 2012 10:11

This is off topic, but since its got a cover made of Jewels, I thought I'd add it here.

 

Iranian artist with exceptional eyesight
copies Quran encrusted with jewels



Raein Akbar Khanzadeh can read and write letters 30x smaller than those visible to the naked eyes
and has written the smallest copy of the Islamic holy book Quran. (Photo courtesy of Mihrabislamicart.com)
28 July 2012

Dubai-based Iranian artist Raein Akbar Khanzadeh was blessed with an incredible gift from birth. He can read and write letters 30x smaller than those visible to the naked eyes.

Raein Akbar Khanzadeh is a very devout Muslim and has used his amazing ability to create some truly incredible transcriptions of the Quran. He graduated from college with a degree in Quranic studies and Mathematics.

He has copied the Quran in its entirety every year for the last 12 years and has created a new record every time. He decided to pursue this as his occupation at the age of 20.

“I decided 12 years ago that I will dedicate my talent in the service of Islam. I do art only with the verses of Quran and I will continue to do it every year,” said Khanzadeh in a report by Gulf News

This year he has displayed his gift by copying the whole Quran, which consists of 114 chapters – and in most copies covers 604 pages –, on one-and-half sheet of silver that are smaller than A4 size paper. Khanzadeh dedicates all of his works to Allah.

He believes that Allah bestowed upon him the gift of astonishing sight.

Khanzadeh was worried as a child that his amazing ability might deteriorate as he grew older however he soon realized that this would not be the case. Instead of deteriorating, he now believes that his eyesight improves the more he reads the Quran.

Even though Khanzadeh never had any formal training in art, he has created some extremely aesthetically pleasing works of art using Holy Scripture. He has painted portraits on grains of rice proving how skillful an artist he is.

His latest transcription of the Quran has been engraved into two sheets of silver and platinum. Khanzadeh spent 10 months working 10 hours a day in order to achieve this. The sheets have been designed into a book that is encrusted with 2,500 gemstones including 20 carats of diamond, 10 carats of rubies as well as sapphires making this masterpiece weigh 6kg. He spent 150,000 Dirhams of his own personal savings on this project. He believes that the sanctity of the Quran should not be used as a way of making money which is why this time round he did not obtain any sponsorship.

“I have not gone for a sponsor this time and spent all of what I earned from my previous project. Sponsors tend to commercialize things and I don’t like it. We should respect the sanctity of Quran and should not use it make money,” he stated

All of his work is examined closely and verified by UAE’s General Authority of Islamic Affairs which have proven all of his work to be genuine and in full detail.

His clients include some very important people one of which being Shaikh Hamdan Bin Mohammad Bin Rashid Al Maktoum, Crown Prince of Dubai and Chairman of Dubai Executive Council as well as the royal family of Kuwait.

Khanzadeh’s work requires a lot of patience though the finished product is rewarding. Khanzadeh transcribed the Quran 94 times smaller than the Guinness World Record holder Pakistani physicist Saeed Bibani. The fact that makes his achievement even more impressive is that Khanzadeh did it using no microscope.

http://english.alarabiya.net/article...28/228940.html
report post quote code quick quote reply
+1 -0
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#72 [Permalink] Posted on 28th November 2012 21:56
arabnews.com/islam-and-science-%E2%80%98go-hand-hand%E2%8...

Islam and science go hand in hand

JUBAIL: SIRAJ WAHAB

Tuesday 27 November 2012

A well-known American scholar and scientist of Bangladeshi origin was in Jubail recently to deliver a lecture on the Holy Qur'an and science. Abdul Hye, who worked for the National Aeronautics and Space Administration (NASA) for nearly three decades, is actively engaged in propagating the message of Islam. His lecture was organized by Sheikh Mohammed Hussein Ali of the Jubail Dawa and Guidance Center. He has delivered presentations to NASA team members and at the Islamic Center of East Lansing. His talk, based on copious references from the Holy Qur'an, helped enlighten a large number of men and women about Allah's supreme power and His authority over His creations. "It is my firm belief that Islam and science go hand in hand," he said. "Science without religion is lame and religion without science is blind." Abdullah Al-Omairi, a steadfast backer of the Jubail Dawa Center, thanked Hye for his eye-opening presentation and underlined the importance of conveying the message of the Holy Qur'an to one and all. During a Q&A session, members of the audience raised points, which prompted Hye to come up with detailed explanations.
report post quote code quick quote reply
+1 -0Like x 1
back to top
Rank Image
abu mohammed's avatar
London
27,565
Brother
9,601
abu mohammed's avatar
#73 [Permalink] Posted on 6th February 2014 21:46
I wasn't sure where to put this post.



The flight of the Bumblebee becomes more impressive: Scientists now believe this humble insect could fly over Mount Everest

Bumblebees are able to fly at altitudes that would suffocate other creatures

Hungry bumblebees travel more than a mile to find food

By STEVE CONNOR
Wednesday 05 February 2014

The flight of the bumblebee - once thought to be aerodynamically impossible - has proven to be even more scientifically astounding than previously believed following a study showing how the humble insect is able to fly high enough to pass over Mount Everest.

Researchers have discovered that a species of Chinese bumblebee is still capable of flight when the air pressure falls to a level equivalent to an altitude of 9,000 metres - more than enough to fly over the 8,848-metre-high peak of the greatest mountain in the world.

Video recordings of bumblebees flying in a barometric chamber where the air pressure is allowed to fall to levels that would suffocate most other animals show that the bees continue to fly by altering the angle of their wings to increase their amplitude as they flap back and forth.

Scientists found that even when the concentrations of oxygen reached perilously low levels as the density of the air fell inside the chamber, the bumblebees still managed active flight in conditions equivalent to the thin air on top of the highest mountain range.

The bumblebees effectively increased the force produced by their flapping wings to compensate for the thinness of the air, rather than increasing the wing-beat rate, said Michael Dillon of the University of Wyoming, who led the study published in the journal Biology Letters.
"So the roughly 60 per cent decline in air density has to be matched by a 60 per cent increase in force production - a remarkable feat when you also consider that they are doing this in such low oxygen," Professor Dillon said.

"A hovering bumblebee has an oxygen demand that is roughly 15 to 20 times that of an elite athlete, yet in our experiments they are meeting this demand in spite of a greatly reduced supply - the partial pressure of oxygen is less than a third of sea-level values," he said.


The experimenters captured wild bumblebees belonging to the species Bombus impetuosus which forages for nectar and pollen in the mountains near Rilong in Sichuan province of China. Within 10 minutes of being captured they were placed in a barometric chamber and their flight filmed as the air pressure was slowly lowered.
The images revealed that the bees increased the angular velocity of their wings by increasing the amplitude of each wing stroke while maintaining a constant wing-beat frequency. The flight angle of the bee increased as a result of the shift, the researchers found.

"This extreme flight performance is likely to be biologically relevant in other contexts. For example, bumblebees fill up on nectar and pollen so that they can deliver these resources back to the hive and feed developing young," Professor Dillon said.

"Flying with a large load is much more challenging than flying empty. Similarly, performing rapid forward flight and evasive manoeuvres to avoid predators both likely require enhanced flight performance," he explained.

Not many flying animals could operate under such thin-air conditions and although insects have been found floating at very high altitudes, this is because they have been blown there by the wind.

"There are a few other documented examples of organisms flying over Everest, such as bar-headed geese, and there are many records of insect sightings as high as 5,000 to 6,000 metres in the Himalayas," Professor Dillon said.

"However, to our knowledge, this is the highest record of an insect flying in reduced barometric pressures, that is, when challenged with both reductions in air density and oxygen. So, I think it is safe to say that it is very unusual, and even more so for insects," he said.

Source
report post quote code quick quote reply
+2 -0Like x 2
back to top