This is what radiation looks like.
A piece of uranium in a chamber filled with cooled ethanol vapor creates visible condensation trails as the alpha particles it emits collide with and ionize the gas molecules.
π½: Cloudylabs
Real Madrid's new stadium is a game-changer.
It includes a fully retractable pitch that can be stored beneath the stadium with the push of a button.
The storage space includes ventilation, air conditioning, irrigation systems, LED lighting, control cameras, and ultraviolet light therapy to maintain the pitch.
But more importantly, it allows Real Madrid to host other events throughout the year, including concerts, basketball games, trade shows, NFL games, and more.
A couple of other stadiums have pitch removal systems β Tottenham Hotspur, Las Vegas Raiders, Arizona Cardinals β but none are this sophisticated.
This will help the club earn billions in additional revenue, and it will serve as the model for all new stadiums in the future.
** If you like learning about the money and business behind sports, subscribe to my 3x weekly podcast. I talk about this stiff all the time.
Apple: https://t.co/oxtjqN8JOE
Spotify: https://t.co/gU26TYamXn
This is a photo of the control room of a German submarine (UB-110) during World War 1 in 1918. The submarine was recovered from the bottom of the ocean. The gears and wheels in the control room were color coded and some had numbers to help sailors operate them.
At the start of World War 1, German U-boats initially followed naval warfare procedures by warning and allowing merchant ships to evacuate before attacking. However, when the Allies armed their merchant vessels and counterattacked, the Germans began sinking merchant ships without warning.
Until 1942, it was common for U-boats to provide food, water, and directions to survivors of torpedoed ships. This changed when a U-boat flying the Red Cross flag, while towing lifeboats, was attacked by a U.S. bomber. The U-boat had to abandon the survivors and dive to avoid destruction. After this incident, the Germans were prohibited from operating under prize rules, leading to unrestricted submarine warfare for the remainder of the war.
The βDance of the thousand-hand Quanyinβ is possibly the most famous & most spectacular visual display in which geometry & synchronization create a kind of effective optical illusion
[read more: https://t.co/hSrlkKPjUr]
[video: https://t.co/9QujmQrOmD]
We didn't have parties to "boost morale"
We didn't have quiz nights
We didn't have champagne
We watched our colleagues die though
We were STEEPED in death
We kept going
We had to
We kept on
So don't you DARE say your parties were "necessary" @borisjohnson
You make me sick.