Yet the advantage of plumed seeds no doubt stands in the closest relation to the land being already thickly clothed by other plants so that the seeds may be widely distributed and fall on unoccupied ground. But in the beautifully plumed seed of the dandelion, and in the flattened and fringed legs of the water-beetle, the relation seems at first confined to the elements of air and water. This is obvious in the structure of the teeth and talons of the tiger and in that of the legs and claws of the parasite which clings to the hair on the tiger's body. The structure of every organic being is related, in the most essential yet often hidden manner, to that of all other organic beings, with which it comes into competition for food or residence, or from which it has to escape, or on which it preys. (A) Adaptation for survival (B) Relation in opposition Ten thousand sharp wedges packed close together and driven inwards by incessantīlows, sometimes one wedge being struck, and then another with greater force The face of Nature may be compared to a yielding surface, with So little, and the number of the species will almost instantaneously increase Lighten any check, mitigate the destruction ever In numbers that each lives by a struggle at some period of its life that heavyĭestruction inevitably falls either on the young or old, during each generation Organic being around us may be said to be striving to the utmost to increase ![]() In looking at Nature, it is most necessary to keep theįoregoing considerations always in mind - never to forget that every single Darwin's emphasis upon abundance (and his use It is the doctrine of Malthus applied with manifold force to the whole animal and vegetable kingdoms (Chapter 3, "Struggle for Existence").Ģ. As more individuals are produced than can possibly survive, there must in every case be a struggle for existence, either one individual with another of the same species, or with the individuals of distinct species, or with the physical conditions of life. I use the term Struggle for Existence in a large and metaphorical sense, including dependence of one being on another, and including (which is more important) not only the life of the individual, but success in leaving progeny. We behold the fact of nature bright with gladness, we often see superabundance of food we do not see, or we forget, that the birds which are idly singing round us mostly live on insects or seeds, and are thus constantly destroying life. Yet unless it be thoroughly engrained in the mind I am convinced that the whole economy of nature, with every fact on distribution, rarity, abundance, extinction, and variation, will be dimly seen or quite misunderstood. Universal struggle for life, or more difficult - at least I have found it so - than constantly to bear this conclusion in mind. When you read the following passages from the first edition of Darwin's shattering book, see if you can predict what effects it might have on Victorian and later authors, and as you read them, check your guesses. The effect of all these points was to move manĪway from the center of creation and imply that he could hardly be its crowning that the genetic variations ultimately producing increased survivability are random and not caused (as religious thinkers would have it) by God or (as Lammarck would have it) by the organism's own striving for perfection.Requires enormously long periods of time, so long, in fact, that the everydayĮxperience of human beings provides them with no ability to interpret such that natural selection, development, and evolution.that this struggle for existence culls out those organisms less well adapted to any particular ecology and allows those better adapted to flourish - a process called Natural Selection. ![]() that all life, biologically considered, takes the form of a struggle to exist - more exactly, to exist and produce the greatest number of offspring.That biological types or species do not have a fixed, static existence but exist in permanent states of change and flux.The first edition of Darwin's On the Origin of Species. Or the Preservation of Favoured Races in the Struggle for Life, made several points that had major impact on nineteenth-century thought: 8ĭarwin's On the Origin of Species by Means of Natural Selection, Annie Dillard, A Pilgrim at Tinker Creek, ch. Form follows function in the created world, so far as I know, and the creature that fnctions, however bizarre, survives to pepetuate its form. Utility to the creature is evolution's only aesthetic consideration. ![]() There is no one standing over evolution with a blue pencil to say, “Now that one, there, is absolutely ridiculous, and I won't have it.” If the creature makes it, it gets a “stet.”.
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![]() Generate completely random, hard-to-memorize passwords. Will disable the phomeme-based generator and uses the random May be easily available from the ~/.history or ~/.bash_historyĭon’t use the specified characters in password. If you use this option, make sure the attacker can not WARNING: The passwords generated using this option are not very Possibles passwords for your pop3 account, and you can ask this Later, if you remember the file, seed, and pwgen’s options used. It will allow you to compute the same password Will use the sha1’s hash of given file and the optional seed toĬreate password. This is theĭefault if the standard output is a tty device. Include at least one number in the password. ![]() Words are printed by columns, and one password otherwise. C Print the generated passwords in columns. The default if the standard output is a tty device. ![]() Include at least one capital letter in the password. Have bad vision, but in general use of this option is not recom. Number of possible passwords significantly, and as such reduces Printed, such as ‘l’ and ‘1’, or ‘0’ or ‘O’. This option doesn’t do anything special it is present only forĭon’t use characters that could be confused by the user when 1 Print the generated passwords one per line.ĭon’t bother to include any capital letters in the generated When standard output (stdout) is not a tty, pwgen will only generate one password, as this tends to be much more convenient for shell scripts, and in order to be compatible with previous versions of this program.ĭon’t include numbers in the generated passwords. This prevents someone from being able to “shoulder surf” the user’s chosen password. Used interactively, pwgen will display a screenful of passwords, allowing the user to pick a single password, and then quickly erase the screen. Hence, its default behavior differs depending on whether the standard output is a tty device or a pipe to another program. The pwgen program is designed to be used both interactively, and in shell scripts. On the other hand, completely randomly generated passwords have a tendency to be written down, and are subject to being compromised in that fashion. Without the -s option should not be used in places where the password could be attacked via an off-line brute-force attack. ![]() In particular, passwords generated by pwgen Human-memorable passwords are never going to be as secure as completely completely random passwords. The pwgen program generates passwords which are designed to be easily memorized by humans, while being as secure as possible. Update: I have since moved to Homebrew since Mac Ports did not upgrade in time for one of the macOS updates. I use Mac Ports only because it was the one I ran since I moved to macOS over 6 years ago. On macOS, you will need either Homebrew or Mac Ports. To run this in Linux, you can use your package installer of choice: apt-get install pwgen I ran the selected password through multiple password strength testing sites and although I got different responses, the password is generally safe with my normal 60 day password reset policy. In my example, I am saying to run ‘pwgen’ without ambiguous letters (not to be comnfused with other letters like ‘0’ (zero) and ‘O’ (the letter)), include symbols, include numbers, include capital letters, and use the option for ‘hard to guess’ password. I can choose any of them or even multiple ones and concatonate them. In this example, I am creating a bunch of random password based on 23 characters.Īs you can see in the results, I have created random passwords. Depending on the size and complexity I need for my password, you can modify it via the command line. I used to use this back in my Linux days. When I need to generate a random password, I use an opensource package named pwgen. ![]() They’ve had a lot of success with the Sega Mega Drive Mini, but times are changing, and the Dreamcast will forever be an albatross around Sega’s neck. Now, sadly, it’s too late for Sega to make a resurgence in the console world. I honestly believe that, had the Dreamcast come out a little later, it would have been a much bigger commercial success. I think my mum had just found out about Tetris back then too! Most other online consoles didn’t start taking off until around 2005, making the Dreamcast around 6 years before its time. People were still playing with the NES and SNES for crying out loud, unboxing N64s and getting to grips with sticking CDs in consoles instead of cartridges. I honestly believe that the world just wasn’t ready for this style of next-gen console back in 1999. Look how many of the games above had positive reviews from critics or were hailed as being ‘the Dreamcast’s saviour, and the console still didn’t manage to take off. I don’t normally write a final thoughts section on these ‘best games’ articles, but I think that this one calls for a brief conclusion. This will always be one of the best Sonic games in my opinion, and I hope that you agree with my choice! Final Thoughts. ![]() It wasn’t just about speed anymore (ok, it’s always about speed with Sonic), and many people saw this game as the one that would bring Sega back to the forefront of the console market (how many times have I written something like that so far in this article!). Sonic was always a gaming hero, but being able to move him in any direction and having the ability to revisit certain areas felt so good. Seeing Sonic in a 3D adventure was absolutely amazing and finally put the blue wonder at the same level as Mario and Spyro. The premise is tried and tested – collect rings, stop ol’ ‘moustache face’ from using the Chaos emeralds for his own evil gain, and run as fast as hedgehogly possible everywhere you can. That’s the history lesson over – let’s crack on with Number 60! ![]() Still, if you are thinking of completing your retro console collection and looking for the best Dreamcast games ever made, then you’ve come to the right place. Many consider the Dreamcast to have been way ahead of its time, especially with the removable VMUs that are now used by many aspiring modifiers and the fact that it was the first console that could connect up to the internet.Ħ20 games were released for the console, a lot of which are incredibly innovative and fun to play, but sadly without the longevity needed to make the Dreamcast a house-hold name today. It sits in second-hand gaming stores like a mysterious object in a fantasy quest and prompts strange looks from children, a constant reminder of what Sega could have gone on to achieve had they got the formula right. It’s perhaps the greatest ‘what if’ story in gaming history, Sega’s swan song and a last-ditch attempt to keep the Sonic ship afloat in a world of bandicoots, Italian plumbers, and green hatted forest children (if you need help on deciphering those three games, then there’s no hope). The Sega Dreamcast is a bit of an enigma. Nothing makes a retro console more interesting than one that could have gone onto greatness, which is why this list of the best Dreamcast games of all time has an exciting yet bitter-sweet feel to it (that’s a good thing – please don’t stop reading). |
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