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Post by the light works on Jul 16, 2024 2:23:27 GMT
Rush Hour 3 - Jackie Chan and Chris Rock "parachute" off of the Eiffel Tower by grabbing a very large flag, with each man taking two corners in order to hold it in an arc shape while they dive. I question if this would work, both due to the physics involved and the fact that it would rely on their grip strength. a lot of things would have to work. one point to be made is we used retired parachutes on the kite crew - they were 180 square foot parafoils. that would mean they were around 12X16. not something two men could hold at full deployment, unless they had inhumanly long arms. another would be that if they didn't weigh the same, and each was holding one side of a parachute, it would turn into a sail. and they'd probably have a pretty good ground speed on impact. |
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Post by ironhold on Jul 19, 2024 21:14:05 GMT
Twisters 2024
*spoiler*
Kate, the female lead, believes that if she deploys a large enough quantity of the moisture-absorbing materials used in diapers into the middle of a tornado it should absorb enough moisture to at least deaden it, if not nix it outright.
Yes, my brain hurts.
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Post by the light works on Jul 19, 2024 23:31:37 GMT
Twisters 2024 *spoiler* Kate, the female lead, believes that if she deploys a large enough quantity of the moisture-absorbing materials used in diapers into the middle of a tornado it should absorb enough moisture to at least deaden it, if not nix it outright. Yes, my brain hurts. that's about as intelligent as saying if you put enough foam rubber sound deadening material in the path of a forest fire, it will silence the crackling enough to put the fire out. |
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Post by rmc on Jul 20, 2024 14:32:12 GMT
Twisters 2024 *spoiler* Kate, the female lead, believes that if she deploys a large enough quantity of the moisture-absorbing materials used in diapers into the middle of a tornado it should absorb enough moisture to at least deaden it, if not nix it outright. Yes, my brain hurts. that's about as intelligent as saying if you put enough foam rubber sound deadening material in the path of a forest fire, it will silence the crackling enough to put the fire out. A slight extra mass in a tornado, making the moisture involved basically solid, spinning at 200 to 300 mph. What could go wrong? |
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Post by the light works on Jul 20, 2024 16:06:36 GMT
that's about as intelligent as saying if you put enough foam rubber sound deadening material in the path of a forest fire, it will silence the crackling enough to put the fire out. A slight extra mass in a tornado, making the moisture involved basically solid, spinning at 200 to 300 mph. What could go wrong? I guess in theory if you feed enough loose material into it, it will disrupt the spin. but based on the aerial footage after tornadoes, it would take a lot. |
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Post by GTCGreg on Jul 20, 2024 19:55:09 GMT
If about 5 miles of ground up houses doesn’t affect it, I don’t think mass is the answer.
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Post by the light works on Jul 20, 2024 22:43:01 GMT
If about 5 miles of ground up houses doesn’t affect it, I don’t think mass is the answer. houses are mostly air... |
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Post by rmc on Jul 21, 2024 14:50:00 GMT
If about 5 miles of ground up houses doesn’t affect it, I don’t think mass is the answer. houses are mostly air... By mass or volume? |
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Post by GTCGreg on Jul 21, 2024 15:22:31 GMT
20,000 cubic feet of air (about the volume of a mid size house) weights about 1200 pounds. Far less than the weight of an average size house, which is between 60,000 and 120,000 pounds not including the air inside. |
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Post by rmc on Jul 23, 2024 23:20:27 GMT
20,000 cubic feet of air (about the volume of a mid size house) weights about 1200 pounds. Far less than the weight of an average size house, which is between 60,000 and 120,000 pounds not including the air inside. So, I could conclude, therefore, a house is actually NOT mostly air... mass-wise. It is mostly the weight of building materials. Looking at the volumes each uses however, air is found within most of the volume of a house. So, a house is mostly air ... with respect of the expanses involved. But a house is mostly "building materials" with respect to the mass involved. Jus depenz on yee point of view. |
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Post by ironhold on Aug 13, 2024 21:00:46 GMT
Snake Eater -
1. Jack Kelly, our hero, travels the river on a custom "jet ski" made by wrapping some sort of hull around his chopper bike and attaching a motorboat engine to the rear. How practical would this be as a customization, or would he have been better off just trying to purchase a traditional jet ski?
2. During one scene, Kelly and his sister are pinned down in a wooden shack. Bullets that are shown tearing through the wood bounce right off of an overturned wheelbarrow that the pair are hiding behind.
3. Kelly is shown using improvised explosives made by filling glass jugs with calcium and gravel. Once water from the local river is introduced, it causes some sort of chemical reaction. In one scene it's a shockwave and debris, but in another where one of these devices is attached to a boat motor it causes a large fireball that kills one of the villains. One of the characters mentions that the river is so polluted that it's not safe to eat the fish, raising the question of what exactly is in the water to cause such an energetic reaction.
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Post by the light works on Aug 13, 2024 22:15:48 GMT
Snake Eater - 1. Jack Kelly, our hero, travels the river on a custom "jet ski" made by wrapping some sort of hull around his chopper bike and attaching a motorboat engine to the rear. How practical would this be as a customization, or would he have been better off just trying to purchase a traditional jet ski? 2. During one scene, Kelly and his sister are pinned down in a wooden shack. Bullets that are shown tearing through the wood bounce right off of an overturned wheelbarrow that the pair are hiding behind. 3. Kelly is shown using improvised explosives made by filling glass jugs with calcium and gravel. Once water from the local river is introduced, it causes some sort of chemical reaction. In one scene it's a shockwave and debris, but in another where one of these devices is attached to a boat motor it causes a large fireball that kills one of the villains. One of the characters mentions that the river is so polluted that it's not safe to eat the fish, raising the question of what exactly is in the water to cause such an energetic reaction. 1: a local made an amphibious conversion for a Jeep and powered it with a small outboard. Adam and Jamie made amphibious bicycle conversions. so while it's probably not optimal, it's theoretically plausble. 2: if they have already gone through the wood, they may have expended enough energy to not penetrate a steel wheelbarrow. 3: good chemical question - big question is, is it just calcium, I.E. calcium supplements; or is it a chemical containing calcium - calcium carbide immediately comes to mind, which makes acetylene when mixed with water. it was what fueled mining lamps, and 50s toy cannons. |
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Post by ironhold on Aug 13, 2024 22:53:06 GMT
Snake Eater - 1. Jack Kelly, our hero, travels the river on a custom "jet ski" made by wrapping some sort of hull around his chopper bike and attaching a motorboat engine to the rear. How practical would this be as a customization, or would he have been better off just trying to purchase a traditional jet ski? 2. During one scene, Kelly and his sister are pinned down in a wooden shack. Bullets that are shown tearing through the wood bounce right off of an overturned wheelbarrow that the pair are hiding behind. 3. Kelly is shown using improvised explosives made by filling glass jugs with calcium and gravel. Once water from the local river is introduced, it causes some sort of chemical reaction. In one scene it's a shockwave and debris, but in another where one of these devices is attached to a boat motor it causes a large fireball that kills one of the villains. One of the characters mentions that the river is so polluted that it's not safe to eat the fish, raising the question of what exactly is in the water to cause such an energetic reaction. 1: a local made an amphibious conversion for a Jeep and powered it with a small outboard. Adam and Jamie made amphibious bicycle conversions. so while it's probably not optimal, it's theoretically plausble. 2: if they have already gone through the wood, they may have expended enough energy to not penetrate a steel wheelbarrow. 3: good chemical question - big question is, is it just calcium, I.E. calcium supplements; or is it a chemical containing calcium - calcium carbide immediately comes to mind, which makes acetylene when mixed with water. it was what fueled mining lamps, and 50s toy cannons. I doubt it's acetylene, as in the film the introduction of the water is the catalyst for the explosion in and of itself. This means that calcium + ?? + water = violent exothermic reaction. |
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Post by the light works on Aug 14, 2024 1:06:23 GMT
1: a local made an amphibious conversion for a Jeep and powered it with a small outboard. Adam and Jamie made amphibious bicycle conversions. so while it's probably not optimal, it's theoretically plausble. 2: if they have already gone through the wood, they may have expended enough energy to not penetrate a steel wheelbarrow. 3: good chemical question - big question is, is it just calcium, I.E. calcium supplements; or is it a chemical containing calcium - calcium carbide immediately comes to mind, which makes acetylene when mixed with water. it was what fueled mining lamps, and 50s toy cannons. I doubt it's acetylene, as in the film the introduction of the water is the catalyst for the explosion in and of itself. This means that calcium + ?? + water = violent exothermic reaction. a quick google search said that mixing pure calcium in water produces calcium hydroxide and hydrogen. and that it's a pretty energetic reaction. add an ignition source, and you have fire. |
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Post by wvengineer on Aug 14, 2024 13:14:43 GMT
1. A hull that wraps around a motorcycle seams like taking the hard way of doing this. Don't see anything that would prevent it other than some common sense that there are much easier ways of doing this. Why not just load the bike into a actual small boat? Bit of a rube Goldberg approach here.
2. Maybe but unlikely. As stated, it depends on the wood walls and the type of bullets being used.
3. As described, calcium and water wouldn't work on its own. It needs an ignition source. It is possible that they could be intentional by the film makers to prevent copy cats. Pure sodium could make a explosive once it is introduced to water, but you have to be very careful that the person making the bomb doesn't blow it up early with splashing river water or even sweat.
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Post by ironhold on Aug 14, 2024 22:43:34 GMT
I doubt it's acetylene, as in the film the introduction of the water is the catalyst for the explosion in and of itself. This means that calcium + ?? + water = violent exothermic reaction. a quick google search said that mixing pure calcium in water produces calcium hydroxide and hydrogen. and that it's a pretty energetic reaction. add an ignition source, and you have fire. That's the thing, there's no ignition source being depicted. It's a 100% chemical reaction. So either the script made something up, or it would actually be a different chemical other than calcium. |
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Post by the light works on Aug 14, 2024 23:18:06 GMT
a quick google search said that mixing pure calcium in water produces calcium hydroxide and hydrogen. and that it's a pretty energetic reaction. add an ignition source, and you have fire. That's the thing, there's no ignition source being depicted. It's a 100% chemical reaction. So either the script made something up, or it would actually be a different chemical other than calcium. a boat motor, particularly an older one, can ignite a flammable atmosphere. |
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Post by ironhold on Sept 26, 2024 17:32:51 GMT
The trailer for "The Ballerina", a film set within the John Wick franchise, just dropped and I'm already seeing something that's a possible candidate.
In the trailer, the title character shoves a grenade in someone's mouth, shoves them in a corner near a blast door of some kind, opens the door so that it's pinning the person in the corner, and holds on to it as a shield against the blast.
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Post by rmc on Sept 26, 2024 20:48:44 GMT
The trailer for "The Ballerina", a film set within the John Wick franchise, just dropped and I'm already seeing something that's a possible candidate. In the trailer, the title character shoves a grenade in someone's mouth, shoves them in a corner near a blast door of some kind, opens the door so that it's pinning the person in the corner, and holds on to it as a shield against the blast. Let me guess. Pinning a grenade behind a "blast door" using body mass to hold said blast door in place while said grenade goes off... wondering if the person holding the blast door in places comes away unscathed? Since you mentioned that the grenade was small enough to fit inside someones mouth there is the arguement that it is a small charge... yet more-than-likely bigger than the "pager" and "walkie-talkie" charges used recently in world events. To me, it's all about that "blast door" and its mass and form... Netwon pretty well laid out that inertia, the ability to resist velocity change, even if the velocity is zero, is the big premise here. And to that, inertial mass is key. A "blast door" made of one centimeter styrofoam verses a blast door made of one meter thick lead is all the difference here... in my humble opinion. So, somehow, COMPLETELY describe the blast door. |
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Post by GTCGreg on Sept 26, 2024 22:16:02 GMT
I’ve seen the blast doors on the test cells at Argonne National Laboratory. Those door ain’t going nowhere from a hand grenade blast. Then it’s also something you’re not going to swing with one hand to pin someone behind either.
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