☀️ Subscribe | https://bit.ly/SubscribeMettaverseMusicThis relaxing ambient music is tuned to A=432Hz and is embedded with 7.83Hz binaural beats, a range whe...301 Moved Permanently. nginx/1.23.4The Schumann Resonance is a natural phenomenon related to electromagnetic resonances occurring in the Earth's atmosphere. The primary frequency is usually around 7.83 Hz, but there are also harmonics of this frequency present. The Schumann resonance is crucial for the Earth and all living beings on it.Product Information. Schumann Resonance Set. The Schumann Resonance Set is tuned to the 9th and 10th Harmonic of the Schumann Resonance. The frequencies are 70.47 Hz and 78.30 Hz. The Schumann Resonance is the magnetic frequency of the earth, which fluctuates between 7 Hz and 8 Hz, with 7.83 Hz being the average frequency.probs one of the most interesting interviews I've ever done!Rollin is a wealth of knowledge and I'm excited to be understanding more HeartMath content in the...Schumann Resonance Music: Earth Magnetic Field Music with 7,83 Hz Binaural Beat.~ My other channels: Sub Bass Meditation Music https://goo.gl/Q3dSdUMeditat...A Schumann resonance is a resonant frequency of a set of several Extremely Low Frequency (ELF) oscillations of the Earth's electromagnetic field between the ground and reflective regions of the ionosphere, triggered by lightning. This page was last changed on 7 December 2021, at 22:51. ...In the world of content marketing, storytelling has become an essential tool for businesses to connect with their audience on a deeper level. A well-crafted story has the power to ...Schumann Resonance Today 23/4 17:00 As previously reported, after the strong movement that lasted about four hours, from 22 yesterday to 02 UTC today, the frequencies began a gradual climb which brought them above the base value between 09 and 11 UTC. Despite this rise there was a further significant isolated peak which reached …Schumann resonance noc spikes todays. Schumann resonance charts last off live happening unusual notice anything experience while did nightSchumann resonance today Schumann resonance frequency 90hz 8hz hovers normallySchumann resonance august report resonances amplitudes tired in5d follow below comments.17 Apr 2016 ... duża komórka MCS nad Niemcami - noc sprajtów 6 s ... noc sprajtów 6 sierpnia ... sudden ionospheric disturbance using Schumann resonance ...The Schumann Resonance refers to a set of frequencies generated by electromagnetic waves in Earth's lower ionosphere, working in harmony with the planet's surface.SCHUMANN RESONANCE How to Read this Chart This live Schumann Resonance chart comes from the Space Observation System at Tomsk Science University, located in Siberia. The top of the chart shows the three days the chart covers. The bottom of the chart shows the hours (using Siberia time which is GMT+7...9 Jun 2021 ... ... Schumann rezonansı bugün 7.8 hz'dir. Düzenli olarak şuradan takip edebilirsiniz. https://noc.galacticage.org/schumann-resonance/. Biz ondan ...There is a theory circulating on the internet that the Schumann resonance frequency is becoming higher over time, and is no longer 7.8 hertz. They make the claim that this raise in frequency, which some say is up to 11 or 12 hertz or even much higher, is related to a "raising of human consciousness". There may be a little bit of truth to ...Mother Earth’s natural heartbeat rhythm is the frequency of 7.83 Hz, also known as the “Schumann Resonance". A 7.83 Hz frequency is an alpha/theta brainwave frequency in the human brain. Alpha/Theta brainwave frequency is relaxed, dreamy, sleepy state, that is also when cell regeneration and healing happens. It is no surprise that people ...Schumann resonances are electromagnetic resonances of our planet. They can be found in the space between the earth's surface and the ionosphere. Those are ve...Claim: Readout shows Schumann Resonance Explosion!Image 1 - Schumann resonance. Frequencies of SR. Image 2. Dependence of Schumann resonance frequencies in Hertz on local time. Amplitudes of SR. Image 3. Dependence of Schumann resonance amplitudes in Hertz on local time. Quality factor of SR. Image 4. Dependence of Schumann resonance Q factors on local time. Local time is expressed in Tomsk ...Nov 30, 2017 · Measurements of orthogonal, horizontal components of the magnetic field in the ELF range obtained during September 1985 show that the Schumann resonance eigenfrequencies determined separately for ... SCHUMANN RESONANCE How to Read this Chart This live Schumann Resonance chart comes from the Space Observation System at Tomsk Science University, located in Siberia. The top of the chart shows the three days the chart covers. The bottom of the chart shows the hours (using Siberia time which is GMT+7...The Schumann Resonance is a global electromagnetic resonance named by physicist Winfried Otto Schumann who predicted it mathematically in 1952. The official description from Wikipedia is-“The Schumann resonances (SR) are a set of spectrum peaks in the extremely low frequency (ELF) portion of the Earth’s electromagnetic field …The Schumann Resonance (SR) is an electromagnetic resonant phenomenon occurring inside the cavity formed by the Earth's crust and the lower layers of the ionosphere, sourced by lightning activity all around the globe ( Ogawa et al., 1969 ). Since they were finally measured in the decade of 1960 ( Balser and Wagner, 1960) ten years after being ...How to read Schumann resonances data from multiple geophysical observatories. This is a new and improved update to the original "How to read Schumann Resonan...Nephrogenic systemic fibrosis (NSF) is an uncommon disorder of the organs and skin that predominantly affects people with severe kidney disease. The disease develops when patients ...Temeljna Schumannova resonanca, 7,83 Hz, ustreza visokemu theta območju človeških možganskih valov. Delta možganski valovi. 0 Hz do 4 Hz ustreza Šumanovi resonanci (ŠR na kratko) 4,11 Hz. Ta možganski ritem se pojavi v globokem spanju brez sanj ali v nezavesti. To je povezano z zaspanostjo. Theta možganski valovi.Schumann resonances are the horizontal bands that appear at ~7.8 ; ~14.4 ; ~21.7 ; ~27.1 ; ~33.3 Hz. Horizontal bands not at those points are Quality readings. Schumann resonances are resonant harmonics, and not a propagating frequency. Frequency of radio waves, such as the SR, is measured in kilometers (or meters). The …Schumann resonance. Electromagnetic waves in the ELF range trapped in the spherical cavity formed by the conductive earth and the conductive ionosphere. The fundamental resonance mode represents one wavelength around the earth with a corresponding frequency of approximately 8 Hz. The resonances are maintained continuously by global lightning ...Claim: Readout shows Schumann Resonance Explosion!The Earth-ionosphere cavity resonator is occupied primarily by the electromagnetic radiation of lightning below 100 Hz. The phenomenon is known as Schumann resonances (SR). SR intensity is an excellent indicator of lightning activity and its distribution on global scales. However, long-term measurements from high latitude SR stations revealed a pronounced in-phase solar cycle modulation of ...The Schumann Resonance has a large list of benefits. We added these forks based on popular demand. Come check it out! - SozoSoundz. SozoSoundz presents the weighted Body Tuners based on the Schumann Resonance 7.83 Hz. We proudly offer the 54.81 Hz (7th Harmonic) and the 62.64 Hz (8th Harmonic/3rd Octave). When used together they create the ...Mar 28, 2007 · A discussion about Schumann's work regarding the long wavelength oscillations in the Earth-ionosphere cavity will be carried out in 22, followed by the final sections devoted to the reception of Schumann's work by his contemporaries and the early observational evidence for the existence of “Schumann resonances.” What is the Schumann Resonance? Sound can "re-sound" or resonate when the source waves are added constructively to the sound bouncing back and forth inside a resonant chamber. In other words, when we are in an acoustically active environment, one with a high degree of "echo," we can amplify the sound by making more sound that constructively ...The Schumann Resonances are actually observed by experiment to occur at several frequencies between 6 and 50 cycles per second; specifically 7.8, 14, 20, 26, 33, 39 and 45 Hertz, with a daily variation of about +/- 0.5 Hertz. The 7.8 Hz observed fundamental resonance is close to the rough theoretical estimate of 7.5 Hz.Measurements of orthogonal, horizontal components of the magnetic field in the ELF range obtained during September 1985 show that the Schumann resonance eigenfrequencies determined separately for ...SUPPORT THIS CHANNELNo YouTube mid-roll ads are programmed for your meditation convenience so Thank You for Supporting this channel: https://paypal.me/TPOYPP...Schumann resonance today ⚡️ power 71 79 80Schumann resonance noc observed spikes How to read schumann resonance graphsHow to read schumann resonance graphs. Today's live schumann resonance charts and resourcesSchumann resonance read graphs february concentrated 17th activity previous Schumann … The Schumann resonances are tied to an elevation in human consciousness. When there are spikes in activity people have noticed a change in behavior. The apps have been created in order to allow for people to easily check the status of the Schumann on their phones. This is just an easy-check of where the levels are. At any given moment about 2,000 thunderstorms roll over Earth, producing some 50 flashes of lightning every second. Each lightning burst creates electromagnetic waves that begin to circle around Earth captured between Earth's surface and a boundary about 60 miles up. Some of the waves - if they have just the right wavelength - combine, …06 March 2021. How To Read The Schumann resonance Spectrogram Properly; Based- on standard, accepted engineering, technical perspective. ** ** The Spectroscope is the full-color visual representation of the Schumann resonances. It is a composite, which is plotted in full-colour, based upon the information received from the reporting dependencies. It is this fun, yet quixotic 'visual aid', is ...Interestingly, the 7.83 Hz Schumann Resonance falls within the range of human brain waves, precisely in the middle where the alpha brainwave and theta brain wave ranges meet. As such, practices that elicit this range of brain waves, such as meditation, help facilitate a deep coupling of human physiology with the Earth’s Schumann Resonance.The Schumann Resonances R. K. Cole, Jr. Stanford Research Institute, Menlo Park, Calif. (Received January 27, 1965; revised May 10, 1965) The resonances of the earth ionosphere cavit y a re conside red d irectly as a cavit y problem rather than as a limiting case of propagation in a quasi-waveguide with an arbitrary (spheri call y symmetric) ...Schumann's Resonance (7.83Hz) | The Earth's Aura | Binaural | NĀDA : DAY 26 of Sound Healing Journey. This is a binaural audio, so headphones are recommended...In the intersection of science and spirituality, the Schumann Resonance stands as a fascinating phenomenon that has garnered attention for its potential impact on human well-being and the manifestation process. This article explores the Schumann Resonance i, delving into its scientific foundations and its intriguing connection to the realms of manifestation, science, and spirituality ...Schumann resonances are global electromagnetic resonances, generated and excited by lightning discharges in the cavity formed by the Earth's surface and the ionosphere. This global electromagnetic resonance phenomenon is named after physicist Winfried Otto Schumann who predicted it mathematically in 1952. Schumann resonances occur because the ...Schumann Resonance. 78,698 likes · 20,024 talking about this. Schumann Resonance 7.83 Hertz Permaculture Design Installation 4th Phase Waterthe effective ionosphere height [17]. Interestingly, frequency decrease of comparable magnitude of the first Schumann resonance, caused by the extremely intense cosmic gamma-ray flare, was reported in [18]. Usually eight distinct Schumann resonances are reliably detected in the frequency range from 7 Hz to 52 Hz.We would like to show you a description here but the site won't allow us.Abstract. The Schumann Resonance is a global electromagnetic resonance named by physicist Winfried Otto Schumann who predicted it mathematically in 1952. The Schumann resonance is the pulse of ...Anomalies in Schumann resonance (SR) (or global electromagnetic ELF (extremely low frequency) resonance due to global lightning activity in the Earth-ionosphere cavity) attract lot of attention in possible association with earthquakes (EQs). The first anomalies were observed in Japan for EQs in Taiwan when the distance between observatory and ...SCHUMANN RESONANCE How to Read this Chart This live Schumann Resonance chart comes from the Space Observation System at Tomsk Science University, located in Siberia. The top of the chart shows the three days the chart covers. The bottom of the chart shows the hours (using Siberia time which is GMT+7...Schumann Resonance has 8 bands of frequencies: 7.83 / 14.2 / 20.03 / 25.9 / 32.0 / 38.5 / 44.5 / 59.9 Hz The Schumann Resonance bands of Hertz frequencies assist in the release of toxic frequencies that build within the layers of the epidermis throughout the decades. Chlorine in the water we bathe and shower in.Schumann resonance animation. At any given moment about 2,000 thunderstorms roll over Earth, producing some 50 flashes of lightning every second. Each lightning burst creates electromagnetic waves that begin to circle around Earth captured between Earth's surface and a boundary about 60 miles up. Some of the waves - if they …Don McLean is a name that has become synonymous with timeless music and poignant songwriting. With his unique blend of folk, rock, and country influences, McLean has left an indeli...Schumann resonance SR is a background stationary electromagnetic noise that propagates in the cavity between the earth surface and the lower boundary of the ionosphere at altitudes of 45-50 km, in the frequency range between 5 and 50 Hz [3,14,27-29]. The phenomenon was named after W.O. Schumann who first predicted and discussed it in 1950s [29].9 Jun 2021 ... ... Schumann rezonansı bugün 7.8 hz'dir. Düzenli olarak şuradan takip edebilirsiniz. https://noc.galacticage.org/schumann-resonance/. Biz ondan ...UPDATED "HOW TO READ SCHUMANN RESONANCES DATA" VIDEO 2023 https://youtu.be/pHCBi1ag7dAThe Space Observing System based in Tomsk, Russia is one of the go-to r...But something started to happen in 2014. Suddenly the baseline frequency of 7.83 Hz starting increasing and went up to spikes at 15 -25 Hz levels. In later years these spikes have gone even higher. That’s why people talk about the Schumann Resonance increasing and that it may affect our bodies and minds.[1] The life and work of Winfried Otto Schumann and the historical development of the main ideas leading to the hypothesis of Earth-ionosphere cavity electromagnetic oscillations are reviewed. The so-called Schumann resonances are a set of frequencies of electromagnetic waves in the natural cavity formed by a planet's (moon's) surface and its ionosphere, in the extremely low frequency (ELF ...An experimenters approach to detecting the Schumann Resonances. The earth / ionosphere wave guide resonances were first predicted and mathematically described in 1952 by W. O. Schumann, the man who's name is now synonymous with the phenomenon. He also became the first to report in open literature the experimental detection of this phenomenon ...The Schumann resonance, a global electromagnetic phenomenon, is shown to be a sensitive measure of temperature fluctuations in the tropical atmosphere. The link between Schumann resonance and temperature is lightning flash rate, which increases nonlinearly with temperature in the interaction between deep convection and ice microphysics. similar ...Leonard Kirago, Örjan Gustafsson, Samuel M. Gaita, Sophie L. Haslett, H. Langley deWitt, Jimmy Gasore, Katherine E. Potter, Ronald G. Prinn, Maheswar Rupakheti, Jean ...The Schumann resonances (SR) are a set of spectrum peaks in the extremely low frequency (ELF) portion of the Earth's electromagnetic field spectrum. Schumann resonances are global electromagnetic resonances, excited by lightning discharges in the cavity formed by the Earth's surface and the ionosphere. Source. Registration-Inscripción.The audio on this meditation video will bring you from the traditional Schumann's resonance all the way down to a zero hertz frequency in the low delta epsilon range then slowly moves back upwards to a resonance similar to that of an Out Of Body Experience resonance. The base frequency was adjusted to resonate with the 432Hz natural harmonics ...Schumann resonance oscillation detection is a complex procedure which requires customized and high-quality measurement systems. The primary objective of this work was to design and implement a stand-alone, portable, and low-cost receiver able to measure as much Schumann resonance harmonics as possible. Design, as well as detailed analysis of the efficient induction coil magnetic antenna and ...1. Introduction [2] The Schumann resonances (SR)—electromagnetic oscillations in the resonator formed by the Earth's surface and the lower ionospheric layers—represent an important geophysical phenomenon, which can be used for monitoring mean global tropospheric thunderstorm activity by measuring natural ELF continuous …In today’s competitive business landscape, creating a memorable company name is crucial for success. Your company name is the first impression you make on potential customers, so i...field power to the power lost in the oscillation period. The Q-factors for Schumann resonances are ~5 and provide estimates of wave propagation conditions in the cavity. Schumann resonances have been used to investigate multiple phenomena related to the surface-ionosphere cavity, namely electromagnetic sources, properties of the medium, andIntroduction. Schumann resonances (SRs) have gained great interest in the last 20 years. The reason is the recent identification of several correlations between SR activity and …Schumann resonance (SR) is the global electromagnetic phenomenon occurring in the Earth - ionosphere cavity at frequencies of 8, 14, 20 Hz, etc (the ELF band). Phenomenon was named after the author of the pioneer publication on the planetary resonance. Since natural electromagnetic signal originates from lightning strokes distributed worldwide, parameters of oscillations reflect the average ...This chapter is concerned with the Earth's Schumann resonances (SR) and their application to understanding global lightning. The natural electromagnetic waves in the SR frequency range (5 Hz to approx. 60 Hz) radiated by lightning discharges are contained by the Earth-ionosphere cavity. This cavity excitation by lightning can occur as a single energetic flash (a 'Q-burst'), or as an ...Schumann Resonance Today. 4,882 likes · 2 talking about this. Schumann Resonance monitoring serviceThe Schumann resonances (SR) are a set of spectrum peaks in the extremely low frequency portion of the Earth's electromagnetic field spectrum. Schumann resonances are global electromagnetic resonances, generated and excited by lightning discharges in the cavity formed by the Earth's surface and the ionosphere. Description The global …Optimum Biological Frequency Resonance (OBFR) Achieving an `OBFR' is the foundation for good health. Research in Biophysics seems to suggest, that our biological system is tuned into the background frequency of our planet the `Schumann Resonance'- a steady pulse of 7.83 Hz which beats around the planet within the earth,.Jun 30, 2019 · The Schumann resonance – It’s called the heartbeat of mother earth by some and the earth’s vibration by others – is actually a frequency. It’s the measurement of 7.83 Hz or the electromagnetic frequency of our planet, to be exact. This energy can increase or decrease at times, and many think it affects our consciousness. The Schumann Resonances R. K. Cole, Jr. Stanford Research Institute, Menlo Park, Calif. (Received January 27, 1965; revised May 10, 1965) The resonances of the earth ionosphere cavit y a re conside red d irectly as a cavit y problem rather than as a limiting case of propagation in a quasi-waveguide with an arbitrary (spheri call y symmetric) ...This session contains the earth's vibrational frequency (7.83 Hz "Schumann Resonance") in a pure binaural beat. The Schumann Resonance is extremely beneficial for grounding, stability, and well-being. This track should be listened to with headphones for best results. Performance Relax Sleep Health & Happiness Sound Grounded Clarity Energy-Based ...A set of various short artificial disturbances from rifle firings, car engine operation, car radio, shakings of the apparatus, etc., were generated deliberately near our ELF recording stations in order to identify their footprint on the recordings of atmospheric electromagnetic radiation in the Schumann resonance (SR) band (from about 2-50 Hz). Such disturbances simulate anthropogenic noises ...A dedicated extremely low frequency (ELF) detector has been constructed and used successfully for Schumann Resonance (SRs) measurements in N.W. Greece. The main objective of this work was to investigate the effect of local lightning activity on the signal of our ELF detector and consequently on the estimated SRs parameters, ...
Schumann Resonance Music: Earth Magnetic Field Music with 7,83 Hz Binaural Beat.~ My other channels: Sub Bass Meditation Music https://goo.gl/Q3dSdUMeditat.... El super mofongo resbaloso
The Schumann Resonance is a phenomenon that resonates with the pulse of our planet and holds a profound significance for our collective experience. Let's unravel the mysteries of the Schumann Resonance, exploring its definition, origin, and its intriguing connection to the human psyche. Discover how this rhythmic frequency impacts our well ...The Schumann Resonance is a natural phenomenon related to electromagnetic resonances occurring in the Earth's atmosphere. The primary frequency is usually around 7.83 Hz, but there are also harmonics of this frequency present. The Schumann resonance is crucial for the Earth and all living beings on it.from Schumann resonances. In Sec.IIC, for the quan-titative analysis of the impact of correlated noise on the parameter estimation of a SGWB in the later session, we summarize our baseline model inspired by Ref. [29]. A. Cross-correlation analysis Let us rst denote the time-series output data at Ith detector by s I(t), which is composed of a ...The Schumann resonance with base frequency of about 8 Hz is a global electromagnetic resonance excited by natural lightning activity within the Earth-ionosphere waveguide . Life evolved on Earth under the constant presence of Schumann resonances, and thus, we cannot exclude that ELF electromagnetic fields played a role in biological evolution. ...Schumann resonances are electromagnetic resonances of our planet. They can be found in the space between the earth's surface and the ionosphere. Those are ve...24 May 2022 ... Additional evidence for light- inhibition in the diurnal SCN can be found in humans using func- tional magnetic resonance imaging (fMRI).25 ...Jun 8, 2022 · The sleep instrument was capable of generating the “low frequency of the Schumann resonance frequency (7.83 Hz) wave” and obtained the Taiwan Patent (No. TW M530656U) on May 4, 2016. After the sleep device is turned on, it stably outputs the composite frequency of “the Schumann resonance frequency (7.83 Hz) wave, theta wave, and delta ... Favicons are essential for optimizing your business website. Learn what is a favicon, where and how to make one, plus tips and examples. Marketing | What is REVIEWED BY: Elizabeth ...September 13, 2023. in SpectrogramWhen one discusses Schumann at 7.83 Hz, one must be cognizant that Schumann Resonance encompasses an entire range of frequencies from .01 to well over 100 Hz. It is the higher amplitude in the frequency scale below 15 Hz that keeps our brain-waves entrained to low stress-free states where adequately sound sleep during the night is possible.Namastey My beautiful people, I am presenting to you all, a cosmic musical dance of the Schumann resonances, singing bowls and my voice chanting the Universa...Schumann Frequency - 7.83 hz - The #1 frequency everyone on the planet is tuned to. The two forks are 58.725 hz and 66.555 hz, which when played together create a difference tone (binaural beat rhythm) of 7.83 hz. When two frequencies are close to each other like this, your brain also makes up the Average (also called the Carrier Frequency), which is 62.64. 62.64 is exactly 3 octaves above 7. ...Different weather phenomena, the earth's physics, and solar energy contribute greatly to its creation. This extremely low EM field is known as the Schumann Resonance. It encircles the earth, vibrating at the frequency of exactly 7.83 Hz and creating a repeating beat. However, it does fluctuate from time to time.The Earth behaves like a gigantic electric circuit. Its electromagnetic field surrounds and protects all living things with a natural frequency pulsation of 7.83 hertz on average — the so-called "Schumann resonance," named after physicist Dr. Winfried Otto Schumann, who predicted it mathematically in 1952.The Schumann Resonance: a Tool for Exploring the Atmospheric Environment and the Subsurface of the Planets and their Satellites @article{Simoes2008TheSR, title={The Schumann Resonance: a Tool for Exploring the Atmospheric Environment and the Subsurface of the Planets and their Satellites}, author={Fernando J. R. Simoes and Rejean J. L. Grard ...Schumann resonances are the principal background in the part of the electromagnetic spectrum from 3 Hz through 60 Hz, and appear as distinct peaks at extremely low frequencies around 7.83 Hz (fundamental), 14.3, 20.8, 27.3, and 33.8 Hz. Schumann resonances occur because the space between the surface of the Earth and the conductive ionosphere ...The Schumann resonances manifest themselves as spectral peaks in the natural background EM noise levels. Most easily detected are the first 4 “modes” which occur at roughly 7.8 Hz, 14 Hz, 20 Hz and 26 Hz. The signal levels involved fall into the low picoTesla / microvolt range. As the mode order increases, signal strength decreases.The 1950s were a golden era for music, with an explosion of new genres and unforgettable melodies that continue to resonate with audiences today. From rock ‘n’ roll to doo-wop, the...14 likes, 0 comments - governorghahghahApril 3, 2024 on : "https://noc.galacticage.org/schumann-resonance/ For those asking here is some info to help read the chart"Schumann resonance – explore every angleSchumann resonance noc Today's live schumann resonance charts and resourcesSchumann resonance today. ¿qué hay tras las alteraciones en la resonancia schumann, el campoSchumann resonance – noc – galactic age Internal assessments occurringSchumann resonance today 24/7 live graph. Check DetailsSchumann resonance. SR is a background stationary electromagnetic noise that propagates in the cavity between the earth surface and the lower boundary of the ionosphere at altitudes of 45–50 km, in the frequency range between 5 and 50 Hz [3,14,27–29]. The phenomenon was named after W.O. Schumann who first predicted and discussed it in 1950s ..
Popular Topics
- Bert kreischer tracy morgan storyBig lick antique festival 2023
- No time to die setting crossword cluePublix pharmacy at metro west village
- Forearm outline tattooHair salons lewisburg pa
- Clermont county court accessFlight ua1638
- Dillards clearance outlet ashevilleCostco in rochester
- Roan inc auctionCrawford county arkansas tax collector
- Taino tattoos designsBiolife military coupon