When you're in need of a blood transfusion, you'll be given blood that matches the blood your own body produces. But this wasn't always the case. The reason we know about it is because of an Austrian and American biologist by the name of Karl Landsteiner, who discovered the blood groups in 1901. Landsteiner, who died in June 1943, would have been 148 years old on June 14. Prior to Landsteiner's discovery, blood transfusions had been attempted as early as the 17th century. Successful transfusions were conducted between animals, but when attempts were made to transfuse animal blood into humans, the human immune system rejected the blood. This can get fatal. The host's antibodies can attack the new red blood cells, breaking them down and causing blood to clot in the veins. This can occur when a transfusion recipient is given incompatible human blood, too. While some successful human transfusions had taken place in the 19th century, it was largely by luck that they did succeed, and many did not. When Landsteiner identified the A, B and O blood groups, he created a means for testing the compatibility between donor and recipient blood, making blood transfusions much safer. While receiving the wrong blood still does sometimes happen today, it is usually by accident, very rare, and medical staff are better equipped to deal with the fallout. Landsteiner was awarded the Nobel Prize in 1930 for his discovery, but his achievements extended to other areas as well. He worked for over a decade on immunity and antibodies and, in collaboration with physician Erwin Popper, isolated the virus that causes polio in 1908, which in turn allowed the creation of a vaccine.
it’s been on the T-shirt for some time now, and Roman Reigns put his money where his merch was by surviving the Mr. McMahon-coined “One vs. All” main event of Raw ... with some help. Set to run the gauntlet against the entire WWE roster until he dropped, The Big Dog only got a chance to face off with Kevin Owens before “All” swarmed the ring to attack the “One” — a response to what had been an impending victory by the WWE World Heavyweight Champion.
Photos: Roman battles Owens in the main event | Watch Lesnar strike!
Enter The Beast Incarnate: Brock Lesnar, conspicuous by his absence all night, chose that moment to return and annihilate the interlopers (Sheamus, to be fair, got a few licks in before going to Suplex City) and F-5 what was left of Reigns. Lesnar wants the title. Lesnar’s in the Rumble. And if he has to go through Reigns to get it? That’s just hunky dory for him.
Residents of Delhi were on Monday pleasantly surprised to see the usual choke-points in the city mostly free of heavy traffic on the third day of the odd-even scheme implemented to check the record-high air pollution in the world’s most polluted capital.
While chief minister Arvind Kejriwal and home minister Satyendra Jain car-pooled with transport minister Gopal Rai in his Tata Nano to the Delhi Secretariat, tourism minister Kapil Mishra took a bus to office.
Read: You can tweet and ask Delhi govt for shortest traffic routes
With restrictions on the numbers of cars on the streets for two weeks, 5,500 buses have been pressed into service to tackle the rush, while Metro is expected to carry 32 lakh commuters, against the previous data of 26 lakh daily.
Several commuters took to Twitter to share their experience of finding less traffic on roads and being able to reach their destinations in almost half the time it usually takes.
