• 0 Posts
  • 1.09K Comments
Joined 2 年前
cake
Cake day: 2023年7月3日

help-circle


  • This has the funny consequence that moving by a fifth and then by a fourth doesn’t land you on the ninth, but the octave (8). Moving by an octave and then another octave gets you to the 15th, not the 16th.

    This is worded confusingly. The reason for this is simply because you include the base note when you start counting, so if you stop midway and stack another interval on top, you have to account for that stop because it decreases the total travel distance by one.

    This is done to actually increase consistency. If you start at c1 and move up an octave and then move up another octave, you stop at c3 which is logical. So you either move 2 octaves or one 15th because 2*8-1 = 15.






  • Wouldn’t you have about the same reaction time as if the truck was braking tho? I mean, the momentum will carry the log in the direction the truck was going until it dissipates, which is kinda the same as braking.

    I mean, that situation would obviously be dangerous because you don’t wanna stop on a freeway for obvious reasons, but still, if you adhered to common safety rules, you should be okay in that situation, no?






  • Bees don’t die when they sting. They have a barbed stinger, human skin is elastic and that’s why they get stuck. Our first reaction is to swat or swipe on the site of stinging which rips their stinger off by force. If you leave the bee alone, it will wiggle and twirl around, trying to get itself unstuck and sometimes that is successful, sometimes they’re fucked. The bee didn’t really commit suicide when stinging, you killed it.

    Also, did you know that the queen bee has almost full control over their offspring? It works like this: The queen bee only mates once in her life during the nuptial flight and stores the sperm in her spermatheca (like a sperm sac), the drone usually dies in the process because mating tears their endophallus off and the trauma kills him. After founding a colony the queen can now choose whether to fertilize her eggs or not and if she does, a female larva will hatch from the fertilized egg, else a drone larva will hatch through a process called haploid parthenogenesis.

    The destiny of becoming a queen or a worker depends entirely on the diet the female larva is fed: all larvae are fed royal jelly (a special secretion from worker bees) for a few days and then worker bees are switched to what is called bee bread which is a mix of pollen and nectar while future queens stay on the royal jelly diet. The royal jelly lets the bees develop their ovaries, making them capable of laying eggs. Technically, all worker bees can lay eggs (which could only produce drones), but in a healthy colony, they will be switched off the royal jelly soon enough so that this rarely occurs.

    So, in a way, worker bees can stage a mutiny if they are unhappy with their current queen by feeding a larva royal jelly, rearing a new queen.

    Bees are awesome.







  • You’re not dense for asking a question. Without asking questions, it’s Impossible to learn.

    The flash point is different. The flash point is the temperature that is necessary to create enough vapor for the substance to ignite.

    Flammable material has a low flash point, which means it catches on fire easily. Think gasoline. Combustibles need a higher initial temperature, but eventually they will burn and sustain the burning until running out. Think wood.