The 555 illumination variable circuit, that is, the photoresistor after the light is irradiated, the resistance changes, so that the charging time of the capacitor in series changes. At this time, the voltage of the threshold end and the trigger end of the 555 changes, so that the output frequency of the 555 changes. The sound of the horn is changed. The photoresistor (also known as the light guide) is commonly used as cadmium sulfide. In addition, there are materials such as selenium, aluminum sulfide, lead sulfide and barium sulfide. These materials have specific wavelengths. Under the illumination of light, its resistance value is rapidly reduced.) RL can be used with MG41-24 model. The following figure is an example. In normal times, the switch S is closed, the circuit oscillates, and the HA emits a humming sound. When R1 is illuminated, as the light intensity increases, the resistance of RL gradually becomes smaller, and the frequency of the oscillating audio decreases, so that the chirping sound of the speaker HA is changed. 555 illumination sound circuit
Tobacco control has been a common global concern, while the traditional tobacco industry gradually, new tobacco has become the new strategic layout of tobacco giants. In this context, the emergence of e-cigarettes has further led to the replacement of traditional tobacco. At present, there are already a thousand different types of e-cigarettes, which have undergone several stages of development. The e-cigarette we are introducing today is the CBD pod systewm, a new type of e-cigarette. In this article we will combine the characteristics of the CBD with a brief analysis of it.
·Anti-anxiety
According to scientific studies,CBD can help depressed patients reduce their anxiety. The use of CBD can help maintain endogenous cannabinoids at a reasonable level, making the patient feel good and happy physically, and without any dependence.
·Anti-ageing
CBD is very powerful in anti-ageing. As a non-psychoactive component of the cannabis plant CBD inhibits the glutamate toxic response of cortical neurons and suppresses excessive oxidative stress, helping the body to achieve anti-ageing effects.
·Anti-inflammatory
CBD reduces the free radicals that cause neurodegenerative diseases and reduces swelling through its anti-inflammatory effects. In addition, CBD stimulates appetite and relieves pain.
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