By applying the relationship between force and potential energy, you will eventually arrive upon an intuition which is akin to treating the curve like the tracks of a roller coaster. Volume 65 . To understand, consider the following situation (pictured below). The Negative Speed Force, like the Speed Force, enhances all movement, momentum, and force exerting capabilities of its user, down to a microscopic level, as well as giving the user conscious control over it. Dans l'épisode La vitesse pure, Barry se retrouve dans la dimension de la Vitesse Pure après avoir voulu récupérer ses pouvoirs (qu'il avait donnés à Zoom pour sauver Wally West). Dans Flash: Rebirth, il est révélé que lorsque Zoom reproduisit l'accident qui donna ses pouvoirs à Barry Allen, il créa une Force Véloce négative en corrompant la version positive. Marked on the figure are the positions where the force exerted by the spring has the greatest and the least values. Imagine trying to push a cart up that extremely tall, steep hill! 1 History 1.1 Origin 2 Notes 3 Trivia 4 See Also 5 Links Recently it was revealed that Professor Zoom created a 'Negative Speed Force' that eats away at the regular Speed Force like a cancer and can consume any speedster connected to it by touch. negative force definition in English dictionary, negative force meaning, synonyms, see also 'negative',in the negative',negative equity',negative feedback'. La Guerre des Flash a vu le monde Barry Allen voler en éclats. It all boils down to the concepts of work and energy conservation. Après avoir été exposé à la Force Véloce négative, ses pouvoirs ont été corrompus au point de devenir imprévisibles. In two or three dimensions, the force is the derivative of the potential in the direction of “steepest slope.”. The restoring force of the spring (or anything that oscillates) will be zero when the slope is zero, which occurs at the equilibrium point, i.e., where the object comes to rest when it stops vibrating. Thin, coated cables maintain a clean, refined look. Un tueur possédant la Force Véloce élimine plusieurs concurrents laissant une t Understand that the diagrams and mathematics here could be applied to any type of vector such as a displacement, velocity, or acceleration vector. Watch the recordings here on Youtube! Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. La Guerre des Flash a vu le monde Barry Allen voler en éclats. horizontal axis) indicates velocity, for example, this may represent muscle contraction velocity, or velocity of movement (measured in meters per second). Un tueur possédant la Force Véloce élimine plusieurs concurrents, laissant une traînée de cadavres et un mystère insoluble pour le policier scientifique Barry Allen. Cette force se répartie sur l'ensemble des supersoniques (ou speedsters, en VO). The potential-energy-force relationship tells us that the force should then be negative, which means to the left. Their relationship is one of the first things that physics students learn about, as part of their study of Newton's laws of motion. La couleur des éclairs de foudre est souvent indicative du type de connexion spécifique qu'a un supersonique avec la Speed Force, ainsi que son niveau de vitesse. Flash ou la vitesse incarnée. Elle aide Barry Allen comme Fast Track. Le Reverse-Flash se libère alors et entame un combat avec la team Flash en 2049. This enhances overall acceleration, agility, reflexes, coordination, balance, and reaction time to inhuman levels. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. Position Graph. Stable equilibrium exists if the net force is zero, and small changes in the system would cause an increase in potential energy. There is a deep connection between force and potential energy. Livre : Livre Flash rebirth T.7 ; en quête de force de Williamson, Joshua ; Kolins, Scott ; Sandoval, Rafa ; Porter, Howard, commander et acheter le livre Flash rebirth T.7 ; en quête de force en livraison rapide, et aussi des extraits et des avis et critiques du livre, ainsi qu'un résumé. Another word for negative. Mathematically you just treat it like you would any negative number. The amount of work I do on the object is given by the force I exert times the distance I moved through: Since only myself and the field are acting on the object, this also must be the amount of potential energy the object gains. It the force depends on movement in two or three dimensions, then technically we say that force is the negative of the gradient of the potential. Mais dans le même temps, on l’informe du meurtre d’un certain Roscoe Hynes, alias Turbine, sur son lieu de travail. For a conservative force (defined here), we define the potential energy as: The choice of reference point does now matter because when observable quantities are calculated using the potential energy, it is only the difference between the potential at two different points (e.g. By the design of the situation, the force the field exerts is equal and opposite the force I exert, so, $F_{field} = - \frac{ \Delta U}{ \Delta y}$. Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. The final result is Hooke's law, the first equation introduced in our discussion of springs! Ranking the Top 10 Speedsters That Appeared on the Flash So Far, Sauf mention contraire, le contenu de la communauté est disponible sous licence. Édité par Urban Comics But if we consider friction force on the car in the direction of motion that would be negative. As was explained earlier, this is a second degree, or parabolic relationship. Hill showed that the velocity of shortening in actively contracting skeletal muscle depended upon the force with which the muscle was loaded. vertical jump), independent of their power capability. Speedster characters appear in other media such as film, video games, anime and manga, the most notable being the video game character Sonic the Hedgehog, and Looney Tunes characters Speedy Gonzales and the [[Wile E. Coyote and Road Runner|Road Runner Lazerbeam . Each of the images below shows an example of equilibrium. 280 pages. Débarrassé de ces effets néfastes, Flash se porte bien mieux. The unstable equilibrium should be at higher potential energy than any nearby point. Force and velocity are two related but different concepts in basic physics. Mais sont-elles la clé pour restaurer son monde, ou s'agit-il au contraire de nouvelles menaces, plus dangereuses encore que la Force Véloce Négative ? Lorsqu'ils courent avec leur super-vitesse, les supersoniques génèrent une traînée d'éclairs derrières eux. This relationship has a useful graphical representation that will help us better understand the spring-mass potential energy and, in Chapter 3, the potential energy associated with the bonding between atoms. The answer is that it is being transferred to potential energy. Hill believed that the functional significance of these experiments was that an internal viscous resistance within the muscle had to be overcome in order for shortening to take place [ 1 ]. Grâce à cette Force Véloce, il a également la possibilité de créer plusieurs après-images ou des "mirages de vitesse". The concept of force is commonly explained in terms of Isaac Newton’s three laws of motion set forth in his Principia Mathematica (1687). As the spring-mass is pulled to the right, the graph's slope becomes positive. This causes the liquids in your body to move away from your feet and towards your he… Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. Alors que Zoom se bat contre Barry et Max, il révèle que le champ d'énergie rouge est une « Force Véloce négative » créée par l'énergie cinétique de Thawne , et il empoisonne la Force Véloce normale. Veel vertaalde voorbeeldzinnen bevatten "negative g-force" – Engels-Nederlands woordenboek en zoekmachine voor een miljard Engelse vertalingen. It also depends on reference we choose. Lastly, there's the minus sign. Meena assiste encore Barry quand ce dernier est rongé par la Force Véloce Négative. Ajouter au panier ... Un tueur possédant la Force Véloce élimine plusieurs concurrents laissant une traînée de cadavres et un mystère insoluble pour le policier scientifique Barry Allen. I calculated this by recording it with a running GPS and calculating the force of the horses at the takeoff. Dépensez 60 € pour la livraison gratuite. Il devient alors le Néga-Flash, ennemi acharné et éternel de Barry Allen. (c'est pareil pour les autres Kryptoniens, ou certains autres aliens). The energy also cannot be disappearing, because of energy conservation. We know intuitively that the spring will try to snap back to it's original shape -- that is, that it will tend to return to zero deformation. La Guerre des Flash a vu le monde Barry Allen voler en éclats. Enrich your vocabulary with the … In the Post-Flashpoint universe, and after the events of DC Rebirth, it is revealed that the Negative Speed Force still exists and that Eobard Thawneis still the creator and generator of it. Gear Up View All. (Contient les épisodes #20 à 25 et #23.2) Barry Allen aimerait bien souffler ! MADE TO STAND OUT. Un tueur possédant la Force Véloce élimine plusieurs concurrents, laissant une traînée de cadavres et un mystère insoluble pour le policier scientifique Barry Allen. Retrouvez Flash rebirth, Tome 7 : En quête de force et des millions de livres en stock sur Amazon.fr. Flash va ainsi enquêter sur tous les bolides de la communauté super-héroïque, à commencer par Kid Flash des Teens Titans Wiki ARROW France est une communauté de FANDOM appartenant à la catégorie Télévision. We can quantitatively show just how right this relationships is. That discovery led me to believe that before I work on my personal positive force, I need to understand the underlying reason … Dans Flash: Rebirth, il est révélé que lorsque Zoom reproduisit l'accident qui donna ses pouvoirs à Barry Allen, il créa une Force Véloce négative en corrompant la version positive. The force is 8N to the left or -8N to the right. What that would tell us here is that hydrogen atoms easily fall into bonds with each other. This is a general result that is true for the force associated with any potential energy[i]. I'm doing a physics science fair project that I made up. Tigerblood - Positive Force In A Negative World: Amazon.nl Selecteer uw cookievoorkeuren We gebruiken cookies en vergelijkbare tools om uw winkelervaring te verbeteren, onze services aan te bieden, te begrijpen hoe klanten onze services gebruiken zodat we verbeteringen kunnen aanbrengen, en om advertenties weer te geven. A noter : Kara Danvers / Supergirl est une Kryptonienne donc pour elle c'est différent, mais elle est peut se déplacer à grande vitesse donc elle est bien une speedster mais ne tire pas sa vitesse de la force véloce. They are, however, clearly very different situations. Legal. We can quantitatively show just how right this relationships is. Le virus, son négatif, sème la mort en empruntant les mêmes routes, comme s’il était la pollution capitaliste incarnée, défaite de toute fonction économique. Carmine Di Giandomenico (Dessin). Men's Training Shoe. This should make sense, because it says that the force will try to push the object back to lower potential. Force Negative is lid van Facebook. Treat the Curve Like a Roller Coaster Track. To answer, we'll introduce the connection between force and potential energy. Using this knowledge, let's see how it makes perfect sense for the spring-mass potential graphed above. Find more ways to say negative, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. 13, 99 € Ajouter au panier. Imagine also that the field is associated with a force, which is constant and pointing downwards at all points in space. initial and final as in the equation above) that has observable effects. The neutral equilibrium should have the same potential energy as nearby points. It can be seen in the orbit of satellites around the earth, the tension in a rope in a game of tether ball, a roller coaster loop de loop, or in a bucket swung around the body. Cette force se répartie sur l'ensemble des supersoniques (ou speedsters, en VO). Auteurs : Josh Williamson (Scénario) /. Emportez vos fandoms favoris partout avec vous. Elle absorbe cette énergie, et devient Negative Flash dans Flash (V5) n°34, en janvier 2018. Il devient alors le Néga-Flash, ennemi acharné et éternel de Barry Allen. Son apparence a changé et ses pouvoirs ont évolué au point qu'il n'arrive pas à les contrôler et risque de mettre en danger les habitants de Central City, par Joshua WILLIAMSON, Carmine DI GIANDOMENICO, Pop MHAN et Christian DUCE. Flash va ainsi enquêter sur tous les bolides de la communauté super-héroïque à commencer par Kid Flash des Teen Titans. Nike Metcon 6. We can also tell that it's nigh impossible to bring two hydrogen atoms too close together. Mais sont-elles la clé pour restaurer son monde, ou s'agit-il au contraire de nouvelles menaces, plus dangereuses encore que la Force Véloce Négative ? Starting qualitatively, the force should be maximum when the spring is most out of shape. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. This is analogous to releasing a ball on a smooth hillside; the ball starts to roll in the direction of the steepest slope of the hill. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Flash rebirth T.7 ; en quête de force - Livre - La Guerre des Flash a vu le monde Barry Allen voler en éclats. Potential Energy from Force: definition. La Vitesse Pure (ou Speed Force, en VO), est une dimension parallèle constituée d'énergie pure qui a donné des pouvoirs à certaines personnes appelées méta-humains : les Speedsters. Graphed below is the potential energy of a spring-mass system vs. deformation amount of the spring. Selon la scientifique Tracy Brand, qui a étudié les supersoniques toute sa vie, les éclairs ne sont pas tous générés par la course, et peuvent provenir directement de la Speed Force. La Guerre des Flash a vu le monde Barry Allen voler en éclats. Meena Dhawan est une scientifique de STAR Labs qui bénéficie de super-vitesse suite à une tempête de Force Véloce. The only powers listed below are t… If the potential energy function U(x) is known, then the force at any position can be obtained by taking the derivative of the potential. Now that you're convinced that this relationship is real, let's see if we can understand why. [ "stage:draft", "article:topic", "authorname:ucd7", "showtoc:no" ], Equilibrium on a Potential Energy vs. Mais sont-elles la clé pour restaurer son monde, ou s'agit-il au contraire de nouvelles menaces, plus dangereuses encore que la Force Véloce Négative ? Grâce à des pouvoirs et des capacités similaires à ceux de son ennemi super-héros, Reverse Flash™ exploite la puissance de la Force Véloce négative et fera tout ce qui est en son pouvoir pour détruire ce qui est important pour Flash. If you accelerate downwards faster than the rate of natural freefall, you will experience what is known as a negative g-force. DC Rebirth. Un tueur possédant la Force Véloce élimine plusieurs concurrents, laissant une traînée de cadavres et un mystère insoluble pour le policier scientifique Barry Allen. Force-velocity profiling is a simple and inexpensive way to assess an athlete’s force and velocity production capabilities during ballistic tasks such as jumping and sprinting. Force, in mechanics, any action that tends to maintain or alter the motion of a body or to distort it. Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. This includes when there are multiple forces acting on the object, all of which cancel out. It's no big deal, you just need to make sure your 'positive' direction is consistent across all your vectors (like velocity, displacement, etc). My problem was to find wether a heavier horse was the better jumper. That is, we consider the spring to move in only one direction in space. In other words, the net force acts opposite to the direction assumed to be positive. Through force-velocity profiling, a coach can identify whether an athlete is force- or velocity-deficient during a given movement (e.g. Nike Swoosh Icon Clash. If it were the other way around, springs would stretch themselves out spontaneously and planets would fly away from each other! Equilibrium occurs where the force is zero. The conclusion is that the equilibrium positions are the positions where the slope of the potential energy vs. position curve is zero. Flash rebirth tome 5 - Devoir de mémoire. And if … Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. The force-velocity curve is simply a relationship between force and velocity and can, therefore, be displayed on an x-y graph (Figure 1). Grâce à cette Force Véloce, il a également la possibilité de créer plusieurs après-images ou des "mirages de vitesse". The stable equilibrium should be at lower potential then any nearby point. Grâce à cette Force Véloce, il a également la possibilité de créer plusieurs après-images ou des "mirages de vitesse". Deliverance from negative Dreams and Nightmares by Force: Powerful Prayers for Breaking the spell of Demonic Dreams & Stopping Nightmares and Bad Dreams: Joseph, Pius: Amazon.nl There are certain modes or positions of special interest are called equilibrium. Flash va ainsi enquêter sur tous les bolides de la communauté super-héroïque, à commencer par Kid Flash des Teens Titans. Others include: Characters in the Dragon Ball franchise like Goku, Vegeta, and Frieza, who are able to react and keep up insane … Veloce’s rings can be adjusted for a more personalized shape. Flash va ainsi enquêter sur tous les bolides de la communauté super-héroïque à commencer par Kid Flash des Teen Titans. Cisco Ramon va alors aller le récupérer avec Iris grâce à son pouvoir de Vibe. If we rearrange to solve for $$F_{me}$$, we get: $F_{me} = \frac{ \Delta U}{ \Delta y}$, However, what we wish to know isn't the force I exerted, but the force the field exerted. Dans Flash: Rebirth, il est révélé que lorsque Zoom reproduisit l'accident qui donna ses pouvoirs à Barry Allen, il créa une Force Véloce négative en corrompant la version positive. X- and Y-Components of a Force Vector. Description. Explanation of the Force-Velocity relationship for Structural Anatomy La Guerre des Flash a vu le monde Barry Allen voler en éclats. Shop. If we take our spring-mass potential energy function, then the force is, $F_{y} = -\frac{dU}{dy} = -\frac{d}{dy} (\frac{1}{2}ky^{2}) = -ky$. We know this because the hydrogen "cart" would easily slide into the bond well. From a force perspective, an equilibrium occurs any time the total force acting on an object is zero. IMO don't do them, don't wanna be out for a couple months dude. The parabolic function has a slope which increases in magnitude the further from zero we go. The potential-energy-force relationship tells us that the force should then be negative, which means to the left. Imagine a box is lifted through a potential field, like lifting an object against gravity. La PlayStation 5 est une console marquée par un certain nombre de choix audacieux. Un tueur possédant la Force Véloce élimine plusieurs concurrents laissant une traînée de cadavres et un mystère insoluble pour le policier scientifique Barry Allen. En quête de force - Joshua Williamson. As you accelerate, the liquid in your body (the blood) moves slower than the solid parts of your body due to the inertia of the blood, often resulting in a feeling of weightlessness. La Vitesse Pure prend alors l'apparence des proche de Barry pour lui parler (Joe, Iris, Henry et Nora Allen). That is, you can visualize the behavior of the system by imagining the object as riding the curve like a cart subject to gravity. Il a découvert qu'il existait bien des Forces différentes Pictured is the real potential energy vs. separation relationship for two hydrogen atoms. Disregarding the minus sign for a moment, this tells us that the steeper the slope of a PE curve plotted against its position variable, the greater the magnitude of the force. To derive this result, I used a constant force field, but it applies even to changing ones, provided the blocky $$\Delta$$'s become sufficiently small, so that $$\frac{ \Delta U}{ \Delta y}$$ becomes a derivative. Negative G-force is any G-force in the opposite direction of positive G-force, caused by your body accelerating towards the earth faster than the forces of gravity. La force véloce serait donc un monde parallèle constituer d’énergie responsable des métas humaine. Neutral equilibrium exists if the net force is zero, and small changes in the system have no effect on the potential energy. For a proof, imagine two paths 1 and 2, both going from point A to point B. This causes the liquids in your body to move away from your head. If pulled or pushed to some value of the position y, what do we know about the restoring force of the spring? Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. Flash étant un méta humain supersonique, il puiserait sa vitesse, son énergie dans cette force. To get a more nuanced understanding of equilibrium than force alone can offer us, we turn to the connection between force and potential energy. The ener… Mais sont-elles la clé pour restaurer son monde, ou s'agit-il au contraire de nouvelles menaces, plus dangereuses encore que la Force Véloce Négative ? I tried noting each time I was negative in a day and it was easy to be positive except when someone was doing something I didn’t like. La production mortifère de la vie est devenue production directe de mort, sous la forme d’un organisme infime. The x-axis (i.e. Achetez neuf ou d'occasion Partager. We can therefore replace the amount of work done by me, $$W$$, with the amount of potential gained, $$\Delta U$$. Alors que les héros ont l’avantage, Nora commence à disparaitre. The seminal experiments of A.V. Nike Run Division Flash. Flash : En Négatif. Applying the idea that the magnitude of the slope tells us the magnitude of the force, we can tell from the graph that the force increases the further the spring is from equilibrium. Men's Indoor Cycling Shoe. How can we confirm our intuitions from the graph? Elle comprend qu’elle n’existe pas dans la nouvelle timeline où la dague a été détruite, mais Thawne leur explique qu’elle pourrait survivre dans la Force Véloce Négative. Flash Tome 4 - En négatif Un tueur possédant la Force Véloce élimine plusieurs concurrents laissant une traînée de cadavres et un mystère insoluble pour le policier scientifique Barry Allen. Negative sign is conventional in the physical quantity. For example :- When a car moves on a road, net force is in the direction of motion that is positive. La Guerre des Flash a vu le monde Barry Allen voler en éclats. Son apparence a changé et ses pouvoirs ont évolué au point qu'il n'arrive pas à les contrôler et risque de mettre en danger les habitants de Central City, par Joshua WILLIAMSON, Carmine DI GIANDOMENICO, Pop MHAN et Christian DUCE. En négatif; T4 - Flash Francis Manapul & Brian Buccellato (0) Lire un extrait \$9.49. Professor Zoom himself is the engine that generates this Negative Speed Force with every step that he runs. Noté /5. This should make perfect sense: the spring is stretched to the right, so it pulls left in an attempt to return to equilibrium. Graphically, this means that if we have potential energy vs. position, the force is the negative of the slope of the function at some point. Thawne can tap into it as normal speedsters can with the normal Speed Force, but with its own unique energy signature. For more information contact us at info@libretexts.org or check out our status page at https://status.libretexts.org. Interlocked bands of metal loop around and around on this simple yet oblique design. What I did gt from my data was that there were almost all negative forces when I was creating my graph. Uniform circular motion is an example of centripetal force in action. Contient THE FLASH #20-25+ THE FLASH #23.2:REVERSE FLASH. We can quickly confirm that the red points above are labeled correctly by checking the definitions. Lors de son combat contre le Professeur Zoom au 25e siècle, Flash a été exposé à la Force Véloce Négative. The work done by a conservative force is equal to the negative of change in potential energy during that process. Elle parvient alors à arracher la Force Véloce Négative du corps de Barry, et à se l’approprier avant de s’enfuir. The energy cannot be going to kinetic energy, because by design the kinetic energy is constant. What does the shape of the curve tell us about the behavior of the bond? My data was slightly faulty, the GPS didn't work so well. Like. Mais sont-elles la clé pour restaurer son monde, ou s'agit-il au contraire de nouvelles menaces, plus dangereuses encore que la Force Véloce Négative ? So far so good! Women's … This should make perfect sense: the spring is stretched to the right, so it pulls left in an attempt to return to equilibrium. Nike Air Force 1 React 3M. That means that if you add up the forces, you get a negative number, for the direction selected as positive. Unstable equilibrium exists if the net force is zero, and small changes in the system would cause a decrease in potential energy. Flash - Volume 4 - En négatif par Francis Manapul aux éditions Urban Comics. Lors de son combat contre le Professeur Zoom au 25e siècle, Flash a été exposé à la Force Véloce Négative. In addition, the body becomes conditioned beyond human potential, allowing them to handle extreme physical exertion and performance, which is also enhanced. Doing Heavy forced negative training has been related to heavy doms for long periods, which is what happened to me, i was out for like 2 months because of heavy forced negative's for Biceps. This article discusses the x- and y-components of a force vector. Missed the LibreFest? Nike SuperRep Cycle. 1 Supersoniques 2 Manifestations physiques 2.1 Couleur de la foudre 3 Galerie La Vitesse Pure (ou Speed Force, en VO), est une dimension parallèle constituée d'énergie pure qui a donné des pouvoirs à certaines personnes appelées méta-humains: les Speedsters. https://powerlisting.fandom.com/wiki/Negative_Forces_Manipulation A quick look at the graph tells us that the slope of the curve at the origin is in fact zero. Nike delivers innovative products, experiences and services to inspire athletes. Il a découvert qu'il existait bien des Forces différentes et il doit maintenant résoudre les mystères qu'elles recèlent. Women's Medium-Support Printed Sports Bra. Next, the force should be zero when the spring is in its equilibrium position. Have questions or comments? A possible cause for the changes in motion occurring in stage C is; the rider is applying a force on the breaks which reduces the riders speed and will eventually bring the bicycle to a standstill. A force that causes motion in a curved path is called a centripetal force. Word lid van Facebook om met Force Negative en anderen in contact te komen. A spring is at its equilibrium position when there is no elastic restoring force. Jaloux, rancunier, Eobard retourne chez lui, s’enfonce dans la rage, et créé une Force Véloce Négative. Mais sont-elles la clé pour restaurer son monde, ou s'agit-il au contraire de nouvelles menaces, plus dangereuses encore que la Force Véloce Négative ? Positive G-forces are anything that exceeds one G. This force is commonly experienced during heaving acceleration or cornering in a car as well as during certain maneuvers that fighter pilots perform. Back Trigonometry Vectors Forces Physics Contents Index Home. https://arrow.fandom.com/fr/wiki/Force_Véloce?oldid=74862, Bleu (non-saphir) la couleur de l'éclaire de negative flash. We now know that the (negative of) slope of a potential energy vs. position graph is force. [i] Everything we say here about the relation of force to potential energy is strictly true when the force depends on only one spatial dimension. As Zoom beats Barry and Max, he reveals that the red energy field is a "negative Speed Force" created by Thawne's kinetic energy, and is poisoning the normal Speed Force. The minus sign means that if the slope is positive, the force is to the left, and visa versa.