British scientists have said they are about to launch a new technology described as a “tongue” capable of distinguishing the taste of wines and whiskey age.
Accordingly, engineers and chemists at the University of Glasgow and Strathclyde University have invented a miniature device based on the optical properties of gold and aluminum to distinguish the differences between aged wines. with an accuracy level of over 99%.
Scientists describe the technology as an artificial “tongue”, capable of distinguishing whiskey from 12 years, 15 years and 18 years, even helping to identify fake wine or real wine. The scientists say the appraisal technology could identify a range of different chemicals in a common mixture.
According to the inventors, the device is used not only to control the quality of products but also to prevent the imitation of expensive wine brands. Alasdair Clark, a scientist at the University of Glasgow, says the artificial “tongue” behaves similarly to the human tongue. chemistry in a general compound.
To get this invention, scientists poured whiskey on a surface of many small pieces of gold and aluminum. These pieces of gold and aluminum act as taste buds. The team then looked at how the pieces of metal changed color, helping them to distinguish the whiskey.
Consulting and appraisal service company Rare Whiskey 101 last year examined 55 bottles of whiskey purchased in the secondary market and discovered 21 of them were fake wine with prices up to more than $ 700,000.
The rarest flower in the world that made Darwin lose his life is also unexplainable
The father of Charles Darwin’s theory of evolution states that, as a flowering plant, it is inevitable that butterflies and bees would be suitable for pollination. But when faced with ghost orchids, the flower has a super slender tube of several tens of centimeters long, he … “choked”.
Ghost orchid: The most rare flower species
Ghost orchid has a scientific name Dendrophylax lindenii. They are extremely rare, with an estimated 3,000 trees in the whole world. Often people can only see them in the wet marshes of southern Florida (USA), Cuba and the Caribbean Islands.
Outwardly, the orchid orchid is like a cluster of roots sticking to the host tree. They belong to the branch of orchids without leaves, only 1-4cm tall.
Of the 3,000 ghost orchid plants, there are an estimated 2,000 clusters concentrated in Florida and Cuba. Each year only about 10% bear flowers.
White orchid orchid lovely, beautiful slender shape and fragrant aroma. In addition to the magical name, they are also known as hyacinth.
Ghost orchids, especially the seedlings that require extremely moist living conditions, have appropriate symbiotic mushrooms to help the roots increase photosynthesis. They were both fussy and careful to hide, so it became even harder to detect.
In the world there are a few people who claim to have successfully cultivated ghost orchids. However, whether it is true or false is unknown, and science has not yet found any method of planting and tending. Therefore, this flower is still in the list of the rarest plant species on the planet.
Possessing a long and slender sepals, challenges Darwin’s theory of evolution
The father of evolutionary theory Charles Darwin (1809-1882) states that all species evolved from a common ancestor. Through natural selection, they not only develop on their own, but also form cooperative relationships. Accordingly, all flowering plants have animal partners that evolved to adapt to collecting nectar, thus helping the plants to pollinate.
In 1862, Darwin accidentally found a Madagascar phalaenopsis tree (This species was later named after him, into a Darwin orchid, Angraecum sesquipedale). However, instead of being happy, he was “demeanor” because of its super slender tubular cymbidium, which was about 30cm long.
According to what Darwin argued, this flower must also be pollinated by an insect with a tongue up to 30cm long. But he did not know which bee or butterfly possessed the same long trunk.
Even at the shortest size, phalaenopsis orchids are up to 13cm. So to get some bile at the bottom, the appropriate insect must also have a tongue of 13cm or more.
Until his eyes closed down, Darwin could not prove his hypothesis in this difficult situation.
It took 130 years to prove it
Many scientists have put effort and time to prove Darwin’s hypothesis. People have not seen the sight of insects that suck nectar orchids, but have discovered a super long-tailed butterfly, the sphinx Morgan (Xanthopan morganii).
The sphinx’s Morgan spout is 20-35cm long. Everyone then had to agree that it was the most suitable (and only) creature to pollinate ghost orchids. Until recent years, thanks to video cameras, observers obtained evidence of reproduction of super-rare flowers blooming this night.
In 2012 at the Florida Panther National Wildlife Refuge, home to a quarter of Florida’s ghost orchids, photographer Carlton Ward Jr was determined to relieve the soul of Darwin. After scouring a ghost orchid hanging on a tree trunk, he waited patiently for 3 days, finally successfully capturing the first real evidence.
Also from this time, Ward became an expert in hunting and photographing moths in cooperation with ghost orchids.
In 2018, Ward received help from the biologist Mac Stone. At the locations that discovered ghost orchids, Stone installed CCTV, accumulated about 7,000 hours of recording.
Without wasting Stone, the cameras recorded at least 5, not just a moth, poking its cock inside the orchid calyx to suck honey. Among those 5 species, there are 2 species: sphinx Pachylia ficus and sphinx Dolba hyloeus leaving pollen on their heads when leaving.
There are also dozens of other moths hovering around. It is possible that the number of insects that could help spawn ghost orchid is more than 5.
Interestingly, in the “matchmaker” there is also a “thief”, the giant sphinx butterfly Cocytius antaeus. Thanks to the possession of a trunk longer than the phalaenopsis orchid, it was free to “drink honey from the temple” and then leave, from “paying a return” to the one who gave him the good meal.