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Paperweight with a light-bulb attached.
The Very-Many-Questions-Not-Worth-Their-Own-Thread Thread XXXIV
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Paperweight with a light-bulb attached.
I've thought about getting a lava lamp a few times. But then my common sense kicks in and I contemplate the mess and possibilities of injury and fires if it were to get knocked over or fritz out.
That said, the volcano-themed one on that website looks pretty cool (in the slang sense, of course
).
That said, the volcano-themed one on that website looks pretty cool (in the slang sense, of course
).
I bought a cabbage from a major supermarket, and one of the outer leaves has 2 strange blue granules on it, see image below. Anyone any idea what it is? What should I do about it? I am tempted to contact the supermarket, but ask that it is sent to an independent expert, to stop the supermarket covering it up. I am not going to eat it.
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A quick google found this:
So it really could be (though very incompetently), and it is illegal I guess?
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I bought a cabbage from a major supermarket, and one of the outer leaves has 2 strange blue granules on it, see image below. Anyone any idea what it is? What should I do about it? I am tempted to contact the supermarket, but ask that it is sent to an independent expert, to stop the supermarket covering it up. I am not going to eat it.
Looks like fertilizer to me.
That does look just like it. I have worked on farms, and every fertilizer I have seen has been a white powder. Doing a google search by image comes up with chinese and indonesian fertiliser. I am not sure what that means.Looks like fertilizer to me.
[EDIT]I bet this is what it is, it has been really dry here and if they applied fertilizer a couple of months ago normally it would have washed off by now, but because it has been so dry it has not.
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Snerk
Smeghead
Anybody tried changing the screen on a smart phone? Youtube made it look hard. Is it? It's only the glass, the LCD is fine.
Let's say I'm walking (or riding a camel) though the Sahara with no water except what I carry. Also, I have no modern technology. How long can I last without resupplying?
(I can't find much on how premodern people actually traveled in the desert, or how much water they carried, etc. It would be a big help if you know about this and can give me some resources.)
(I can't find much on how premodern people actually traveled in the desert, or how much water they carried, etc. It would be a big help if you know about this and can give me some resources.)
Start by figuring out how much you carry, and wait for @Dachs to drop by.
That's kind of vague, because exertion level is the absolute most important factor in determining water usage, and you haven't given it. Are you expecting only to survive, or to conduct an extended road march? What sort of terrain will you be following?
A standard backpacking rule for the average hiker is that when traveling at a moderate level of exertion at 40 C, you will excrete about a liter's worth of water in sweat, and will need to rehydrate that same amount to stay safe. Lower temperature will decrease this requirement, especially traveling at night. Reducing exertion will also decrease this requirement, but you obviously won't be able to travel as far (or as quickly). If carrying a heavy pack (due to large amounts of water), you will obviously exert yourself more and require more water. Traveling by camel will considerably reduce sweating through exertion but not entirely; the camel will also need to eat plants in order to rehydrate, so trips through areas with little plant life and no regular resupply are not feasible.
From armies to ultramarathoners, most people who travel through the desert tend to reckon on daily water resupplies. This has not appreciably changed with the advent of modern technology - rather, the ability of modern mechanized armies to take water with them has been dramatically improved. Historically, lack of access to local water is a big "no-go" sign for military forces, as described evocatively in Diodoros Sikeliotes XIX.94-98, a classical passage on desert warfare in what is now southern Israel and Jordan epitomized from an eyewitness account.
Stretching your supplies can be very dangerous and inflict heat-related maladies, even if you only try to go a few days with what you can carry. Three days isn't an absolute limit, but it's probably the most realistic for most people. It's possible to survive for more than three days without resupply, but it increases the risk to your person dramatically. There are stories here and there: the Marathon des Sables participant who lasted for ten days by eating animals raw (for their blood) and finding succulent plants; the paraplegic who dragged himself multiple kilometers without food or water; the eighty-year-old man who lasted five days on windshield wiper fluid. All of those people survived their ordeals through luck more than anything else.
Anyway: to find the length of time you can last before resupply, consider your exertion level and your carrying capacity and go from there. Don't neglect food supplies, either.
Snerk
Smeghead
The Bedouin users in CFC should know.
walking through loose deep sand is terribly tiring for your legs and stressing willpower as well.
90 miles as such is not much. Can be done by anyone healthy in 2-3 days if you trained yourself at 15 mile marches.
90 miles as such is not much. Can be done by anyone healthy in 2-3 days if you trained yourself at 15 mile marches.
Why would a trade caravan not take water along?
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