2010-05-25, 16:25
#1033
2010-05-25, 20:57
#1036
__________________
Senast redigerad av Brstd 2010-05-25 kl. 20:59.
Senast redigerad av Brstd 2010-05-25 kl. 20:59.
2010-05-25, 22:49
#1039
2010-05-25, 23:03
#1040
Citat:
Ursprungligen postat av CrazyForJesus
Angående hissen så är det ju så att om du kan hoppa uppåt med samma hastighet som hissen åker neråt precis innan nedslag så skulle man ju klara sig.
Problemet är ju att man naturligtvis inte kan hoppa så snabbt. Dessutom skulle det inte hjälpa ändå eftersom den kraft man använde för att hoppa skulle trycka hissen neråt också (Newtons lag) vilket skulle medföra att du inte fick upp den hastighet som behövdes
Problemet är ju att man naturligtvis inte kan hoppa så snabbt. Dessutom skulle det inte hjälpa ändå eftersom den kraft man använde för att hoppa skulle trycka hissen neråt också (Newtons lag) vilket skulle medföra att du inte fick upp den hastighet som behövdes
Då får man hoppa med halva den hastigheten
2010-05-26, 09:09
#1041
2010-05-27, 00:23
#1043
Nu vet jag inte om det diskvalificeras som källa i den här delen av flashback men både "mynt från eiffeltornet" och hissmyten har testats av mythbusters:
(inser att det är formulerat som från en skyskrapa och svaren på hemsidan är inte alls lika utförliga som i programmet)
Eiffeltornet/Skyskrapan:
Gevärskulans dödlighet:
Hoppa i hiss:
Tjuren och den röda färgen:
Jag förstår om Mythbusters ses som lite tveksamt som svar men det är mitt bidrag till tråden.
(inser att det är formulerat som från en skyskrapa och svaren på hemsidan är inte alls lika utförliga som i programmet)
Eiffeltornet/Skyskrapan:
Citat:
A penny dropped from a skyscraper lands with enough force to either kill a pedestrian on the sidewalk below or embed itself into the sidewalk.
busted
A penny’s total mass is not sufficient to perforate human skin – let alone penetrate concrete or asphalt – even when fired from a rifle.
busted
A penny’s total mass is not sufficient to perforate human skin – let alone penetrate concrete or asphalt – even when fired from a rifle.
Gevärskulans dödlighet:
Citat:
Bullets fired into the air maintain their lethal capability when they eventually fall back down.
busted / plausible / confirmed
In the case of a bullet fired at a precisely vertical angle (something extremely difficult for a human being to duplicate), the bullet would tumble, lose its spin, and fall at a much slower speed due to terminal velocity and is therefore rendered less than lethal on impact. However, if a bullet is fired upward at a non-vertical angle (a far more probable possibility), it will maintain its spin and will reach a high enough speed to be lethal on impact. Because of this potentiality, firing a gun into the air is illegal in most states, and even in the states that it is legal, it is not recommended by the police. Also the MythBusters were able to identify two people who had been injured by falling bullets, one of them fatally injured. To date, this is the only myth to receive all three ratings at the same time.
busted / plausible / confirmed
In the case of a bullet fired at a precisely vertical angle (something extremely difficult for a human being to duplicate), the bullet would tumble, lose its spin, and fall at a much slower speed due to terminal velocity and is therefore rendered less than lethal on impact. However, if a bullet is fired upward at a non-vertical angle (a far more probable possibility), it will maintain its spin and will reach a high enough speed to be lethal on impact. Because of this potentiality, firing a gun into the air is illegal in most states, and even in the states that it is legal, it is not recommended by the police. Also the MythBusters were able to identify two people who had been injured by falling bullets, one of them fatally injured. To date, this is the only myth to receive all three ratings at the same time.
Hoppa i hiss:
Citat:
It is possible to survive a freefalling elevator by jumping up at the last moment before it hits the ground.
busted
The jumping power of a human being cannot cancel out the falling velocity of the elevator. The best speculative advice from an elevator expert would be to lie on the elevator floor instead of jumping. Adam and Jamie speculated the attendant survived because the tight elevator shaft created an air cushion. This together with spring action from slack elevator cable could have slowed the car to survivable speeds.
(This myth is fueled by the story of an elevator attendant found alive but badly injured in an elevator car that had fallen down a shaft in the Empire State Building after a B-25 Medium Bomber crashed into it in 1945.)
busted
The jumping power of a human being cannot cancel out the falling velocity of the elevator. The best speculative advice from an elevator expert would be to lie on the elevator floor instead of jumping. Adam and Jamie speculated the attendant survived because the tight elevator shaft created an air cushion. This together with spring action from slack elevator cable could have slowed the car to survivable speeds.
(This myth is fueled by the story of an elevator attendant found alive but badly injured in an elevator car that had fallen down a shaft in the Empire State Building after a B-25 Medium Bomber crashed into it in 1945.)
Tjuren och den röda färgen:
Citat:
The color red can infuriate a bull and make them charge.
busted
To test this myth without putting themselves in danger, the Build Team constructed three fake matadors that would carry differently colored flags. First, they placed stationary flags of different colors near a bull. The bull charged the red, white, and blue flags with equal ferocity, even when all three flags were out at once. Using a remote controlled clothes line, the Build Team managed to prove that the bulls were angered by movement rather than color. They then placed the matador dummies in the ring, each one dressed in a different color. The bull charged the white dummy first, the blue dummy second, and the red dummy last. Finally, Tory went into the ring dressed in a red jumpsuit and had to stay still while two professional cowboys moved around the the ring to try and draw the bull’s attention. The bull chased the cowboys for a short time, but ignored Tory, which proved the theory that bulls concentrated on movement more than color. Also, there is no scientific proof that bulls are angered by the color red.
busted
To test this myth without putting themselves in danger, the Build Team constructed three fake matadors that would carry differently colored flags. First, they placed stationary flags of different colors near a bull. The bull charged the red, white, and blue flags with equal ferocity, even when all three flags were out at once. Using a remote controlled clothes line, the Build Team managed to prove that the bulls were angered by movement rather than color. They then placed the matador dummies in the ring, each one dressed in a different color. The bull charged the white dummy first, the blue dummy second, and the red dummy last. Finally, Tory went into the ring dressed in a red jumpsuit and had to stay still while two professional cowboys moved around the the ring to try and draw the bull’s attention. The bull chased the cowboys for a short time, but ignored Tory, which proved the theory that bulls concentrated on movement more than color. Also, there is no scientific proof that bulls are angered by the color red.
Jag förstår om Mythbusters ses som lite tveksamt som svar men det är mitt bidrag till tråden.
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