see url:
https://www.sciencetimes.com/articles/26700/20200801/scientists-disprove-340-year-old-belief-sperms-move-apparently-spin.htm
The world is just full of it, from the macro to the micro, from MSM to
the nano technology. Isn't it amazing how deception gets in
everywhere...even in the world of the micro-orgasm its peculiar dancing
wriggle manages to confuse and deceive producing conception in the
ovaries...whilst folks are looking the other way and thinking of other
things. It's the way that they move that tickles me. How about you?
You should see the video at the bottom of the article. What would we do
without the invention of the microscope. One learns sumfink noo every
day...:-)
ATB
Dougie.
Quote<<<
Researchers from Bristol and Mexico made a breakthrough in fertility
science when they disproved the centuries-old belief of how the sperms swim.
Dutch textile merchant Antonie van Leeuwenhoek invented the powerful
compound microscope around 340 years ago. He accidentally discovered the
single-cell bacteria, which changed the course of medicine.
Shortly after that, he examined his own semen and found tiny, wriggling
creatures called "animalcules."
In 1678, van Leeuwenhoek wrote to the secretary of the Royal Society in
London that the creatures he discovered moved forward as their tails
move like that of a snake or an eel swimming in water.
He described the tail of the sperm as moving like how snakes or eels do
when swimming. This was confirmed by scientists over the next centuries
while observing the sperms under the microscope. Since then, science has
believed that sperms wriggle as they swim.
Sperms Deceived Scientists for 340 Years
Now, it turns out that the centuries-long belief of how sperms swim is
wrong. Using state-of-the-art 3D microscopy and mathematics, scientists
found that sperms swim like the otters.
Study author Hermes Gadelha, head of Polymaths Laboratory in the
department of engineering mathematics at the University of Bristol,
sperms are very tricky creatures deceiving scientists for so long.
Gadelha noted that to see the real movement of the tail, one should
"move with the sperm and rotate with the sperm." It is like putting a
tiny camera on the sperm's head.
That is just how Gadelha's co-authors Gabriel Corkidi and Alberto
Darszon, both from the Universidad Nacional Autonoma de Mexico.
They used state-of-the-art tools like the super-high-speed camera that
can record more than 55,000 frames within a second. The researchers were
successful and saw that the centuries-old belief side-to-side movement
of the sperms was actually not true.
They discovered that the sperm's tail lashes to only one side, enabling
them to swim in a perpetual circle, says Gadelha.
The sperms were smart enough to figure out that if they roll while
swimming, like otters corkscrewing through water, their one-sided stroke
will allow them to swim forwards.
"The rotation of the sperm is something that is very important. It's
something that allows the sperm to regain symmetry and actually be able
to go straight," Gadelha added.
Groundbreaking Study Surprises Science
Gadelha remarked that their findings were indeed a surprise. To confirm
their findings, they spent nearly two years repeating the experiment and
cross-checking their math equations. But the results stayed the same.
But why does the sperms' movement important in science?
Gadelha said that the rotating motion of the sperms may be hiding some
subtle aspects about their health or how well they can travel so fast.
The researchers hope that more scientists and fertility experts will use
their findings for future research on male fertility.
Gadelha said that the instrument that they used in this breakthrough has
limitations. They are open to finding more about how the sperms move,
and hopefully, they will discover more exciting details about it.
>>>End of Quote
