Nike also introduced two "LS" (Lifestyle) models, which became the first Jordan sneakers to feature the famous Jumpman logo. The original "White Cement", "Black Cement" colors returned. The shoes returned to stores in 1999, a year after Jordan retired from the Chicago Bulls.
#Jordan 4 lightning 2021 series#
It's the model worn by MJ during "The Shot" - the infamous buzzer-beater that won Bulls the series over Cleveland Cavaliers. To no surprise, the fourth Jordans became an instant hit. When first released, the price of Air Jordan 4 shoes was $110 and was available in four shades of color -"Black Cement", "White Cement", "Military Blue", and "Fire Red". Hatfield introduced this feature to reduce weight, combining a more casual style with utility. Air Jordan 4 introduced plastic lace eyelet wings and netting on the upper. Read more How does Restocks work That is how it works New & Unworn Our items are always unworn and supplied in the original package. It does not mean Tinker did not bring something new to the table, though. SKU 408452-700 Brand Air Jordan Model 4 Release date Product description Michael Jordan wore the first pair of Air Jordans during an NBA match in 1985 when he had just start. The shoes featured the classic Air Max cushion, enlarged tongue, and "Nike Air" logo on the heel. They are the fourth installment of the signature shoes designed for the Bulls' legend Michael Jordan.Ĭreated by Tinker Hatfield, Air Jordan 4 shared many similarities to its predecessor - Air Jordan 3. “It’s important to consider this aspect of safety,” said Houard.Air Jordan 4 sneakers debuted in February 1989 during the NBA All-Start Game. But the scientists believe the technology could still be useful, as launchpads and airports often have designated areas where no-fly restrictions apply. The laser is powerful enough to be a risk to the eyes of overflying pilots, and during the experiments air traffic was closed over the test site. These channels, which last for milliseconds, are more electrically conductive than the surrounding air, and so form an easier path for the lightning to follow. This leads to a long chain of what the researchers call filaments in the sky, where air molecules rapidly heat up and race away at supersonic speeds, leaving a channel of low density, ionised air. When laser pulses are fired into the sky, a change in the refractive index of the air makes them shrink and become so intense that they ionise air molecules around them. The laser diverts lightning bolts by creating an easier path for the electrical discharge to flow along. The footage shows that the lightning bolt followed the laser path for about 50 metres, suggesting that the pulses helped steer the strike. Only one strike, on 21 July, happened in clear enough conditions for the researchers to film the path of the lightning from two directions using high speed cameras several kilometres away. Instruments set up to record lightning strikes showed that the laser diverted the course of four upward lightning discharges over the course of the experiments.
The scientists waited for storms to gather and between July and September last year, fired rapid laser pulses at thunderclouds for a total of more than six hours. Writing in the journal Nature Photonics, Houard and colleagues in Switzerland describe how they carted a powerful laser to the top of the Säntis mountain in north-eastern Switzerland and parked it near a 124m-high telecoms tower that is struck by lightning about 100 times a year. But in more recent times, scientists have looked for other ways to protect buildings and objects from damaging strikes. Traditional lightning rods date back to Benjamin Franklin who used to chase thunderstorms on horseback before his famous kite experiment in 1752. More than a billion bolts strike Earth each year, causing thousands of deaths, 10 times as many injuries, and damage that runs into tens of billions of dollars. The charge carried in a bolt is so intense that it reaches 30,000C, about five times hotter than the surface of the sun. Lightning bolts are huge electrical discharges that typically spark over two to three miles. “The hope is to extend that protection to a few hundred metres if we have enough energy in the laser.” “Metal rods are used almost everywhere to protect from lightning, but the area they can protect is limited to a few metres or tens of metres,” said Aurélien Houard, a physicist at École Polytechnique in Palaiseau.
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