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Joined 1 year ago
Cake day: July 2nd, 2023
  • ThanksForAllTheFish@sh.itjust.workstoWorld News@lemmy.world•‘A catastrophe’: Greenpeace blocks planting of ‘lifesaving’ Golden RiceEnglish
    271·
    1 month ago

    The GMO gene in Golden Rice is patented. It’s just licensed for use for free in developing countries on small hold farms. A monoculture of golden rice would be less diverse than the current wide range of heritage rice varieties, and there could be over reliance on it which could case issues if there was a blight. Theres some concern that spread of the genes could catch unaware farmers with legal issues, but it’s harder for rice genes to spread than most other crops, as they’re usually self-pollinating. The risks dont seem to outweigh the benefits in this case, but it is more complex than it appears on the surface level. Greenpeace doesn’t seem to be able to use scientific research to back its claims here, and is instead just staying true to it’s anti-GMO message.

  • ThanksForAllTheFish@sh.itjust.workstoAsklemmy@lemmy.ml•What did you get told as a child that you realised was a lie as you got older?
    0·
    2 months ago

    It sounds like you’re taking a skeptical stance towards the conventional interpretation of dinosaur fossils without proposing an alternative hypothesis for their origins. This approach can be useful for critically examining evidence but might limit understanding if alternative explanations aren’t explored. In scientific discourse, it’s typically valuable not only to critique existing theories but also to propose viable alternatives that can be tested and evaluated against the evidence. If the goal is to challenge established views like the existence of dinosaurs, developing a coherent alternative theory on the origin of fossils could strengthen your argument and provide a new perspective for consideration.

  • ThanksForAllTheFish@sh.itjust.workstoAsklemmy@lemmy.ml•What did you get told as a child that you realised was a lie as you got older?
    0·
    2 months ago

    The existence of dinosaurs is well-established through a variety of scientific evidence. Here are some of the key proofs:

    1. Fossil Evidence

    • Bone Fossils: The most compelling evidence for the existence of dinosaurs comes from fossils. These are preserved remains found in sedimentary rocks that have formed from sediments laid down in ancient rivers, lakes, and seas. Dinosaur bones show distinct features, such as air-filled cavities that indicate they were adapted to support massive bodies while being lightweight, similar to modern birds.
    • Tracks and Footprints: Fossilized footprints and tracks give clues about the behavior, movement, and size of these creatures. Sites like the Paluxy River trackways in Texas and others around the world show clear, sequential dinosaur footprints.
    • Egg Fossils: Fossilized eggs have been found in many locations around the world, providing direct evidence of reproduction in dinosaurs. Some nests even contain embryos, which help scientists understand growth and development in these creatures.

    2. Geological Distribution

    • Global Spread: Dinosaur fossils have been found on every continent on Earth, including Antarctica. This widespread geographic distribution is consistent with the known plate tectonics and continental drift over geological time scales, supporting the timeline in which dinosaurs are said to have existed.

    3. Radiometric Dating

    • Age Determination: Radiometric dating methods allow scientists to determine the age of rock layers where dinosaur fossils are found. These methods typically use the decay of naturally occurring isotopes, such as uranium-lead or potassium-argon dating, to establish the age of rocks as ranging from about 66 to over 200 million years old—corresponding to the Mesozoic Era, the time period during which dinosaurs thrived.

    4. Comparative Anatomy and Phylogeny

    • Anatomical Similarities: The study of dinosaur fossils allows scientists to reconstruct their skeletons and infer muscle attachments and body shapes. Comparisons with modern animals can help interpret their posture, diet, and lifestyle.
    • Evolutionary Relationships: Dinosaurs share many features with other groups of vertebrates, especially birds. In fact, modern birds are considered the direct descendants of theropod dinosaurs, a relationship supported by numerous anatomical and genetic data.

    5. Soft Tissue and Molecular Evidence

    • In some rare cases, soft tissues have been preserved in dinosaur fossils. For example, flexible blood vessels and cells have been reported in Tyrannosaurus rex fossils. While controversial and rare, such findings can provide insights into the biology of these ancient creatures.

    6. Paleoenvironmental Reconstructions

    • Contextual Clues: Fossilized plants, pollens, and associated animal fossils found alongside dinosaur remains help reconstruct the environments they lived in, further validating their existence and providing context about the ecosystem dynamics of the past.

    Collectively, these evidences from paleontology, geology, and biology robustly demonstrate that dinosaurs existed as real, living organisms on Earth millions of years ago. Their study continues to provide valuable insights into the history of life on our planet.

  • ThanksForAllTheFish@sh.itjust.workstoNo Stupid Questions@lemmy.world•Why don't computers have "computer-numbers" equivalent to phone numbers
    2·
    2 months ago

    My understanding with phones is that you phone your own provider, who then looks up the provider of the number you’re calling based on country code, provider or area code prefixes. Providers will “peer” with each other to route calls over the most cost efficient path. So the other sides provider is responsible for getting it to the right destination phone within thier own customer network. Theres no authentication from the sending party on a protocol level, this is why scammers can spoof as any phone number.

    I believe that IP routing does something similar, the IP data is handed over to possibly multiple providers until it reaches its destination provider. The blocks of ip addresses are published as linked to an Autonomous System and each autonomous system has an owner/provider. The source is not authenticated at a protocol level which is why we need client and server certificates.

    In DNS you go to the root TLD servers and ask what IP the .com resolver is. The .com resolver has a list of mappings of authoritative name servers to domains. So example.com may have an authoritative NS of 1.2.3.4 who you can go to and ask what IP test.example.com is hosted on. The authoritative name server is the source of truth for that domain and other servers cache it to prevent overloading and increase speed. You may check with the authoritative NS if you want, but it may be slower to respond than your local NS. Again DNS is not authenticated at the protocol level so we need server certificates to prove that the device behind the IP serving you is allowed to serve you test.example.com.