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â Ever wonder how do we know the composition of suns and stars far away in the universe? The answer is spectrometer, the amazing equipment that can analyze light spectrum from any light source. You have read it in text books, now you can have it in your hand and observe Sun's emission spectrum yourself!
â brand new and high quality
â The spectroscope is made of optical glass. The composite prism and converging lens are installed in the vertical tube. Hold the spectroscope tube, the slit facing the light, a parallel beam is generated from the slit and converging lens. When the parallel beam pass through the prism, the dispersion spectrum can be directly observed. If the light source is fluorescent light, against the background of the continuous spectrum, one can see the line spectra of mercury (three straight lines).
â When use it for sun light observation, please use sun's reflected light from a mirror (Do not directly face the sun).
â This product can be used for a variety of light spectrum analysis. It is a high-resolution, simple, and economical product for hobbyist, amateur scientists, student lab and science fair projects.
Description: Ever wonder how do we know the composition of suns and stars far away in the universe? The answer is spectrometer, the amazing equipment that can analyze light spectrum from any light source. You have read it in text books, now you can have it in your hand and observe Sun's emission spectrum yourself! "br""br"The spectroscope is made of optical glass. The composite prism and converging lens are installed in the vertical tube. Hold the spectroscope tube, the slit facing the light, a parallel beam is generated from the slit and converging lens. When the parallel beam pass through the prism, the dispersion spectrum can be directly observed. If the light source is fluorescent light, against the background of the continuous spectrum, one can see the line spectra of mercury (three straight lines). "br"When use it for sun light observation, please use sun's reflected light from a mirror (Do not directly face the sun). This product can be used for a variety of light spectrum analysis. It is a high-resolution, simple, and economical product for hobbyist, amateur scientists, student lab and science fair projects.
Specifications: Material: Optical Glass Shell Color: Blue Size: 10x2.4x2cm/3.94x0.94x0.79" Quantity: 1 Pc
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Making it easier to get a third primary dose of the COVID-19 vaccine
People aged 12 years or older with an underlying health condition may not have a full immune response to the COVID-19 vaccination. They may therefore be offered a third dose of the COVID-19 vaccine to help reduce the risk of getting seriously ill. This is known as the third primary dose. This third primary dose is not the same as the booster dose.
The third primary dose is usually given at least eight weeks after the second dose, but a GP or hospital consultant may suggest a different interval where this is required because of ongoing or planned treatment.
Many people will have received a letter directly from the NHS advising that they may be eligible for a third primary dose. People who have not yet been contacted but think they are eligible should contact their doctor as soon as possible.
Further details about the third primary dose can be found on the NHS.UK website.
The NHS will set out the next steps for how primary care networks will work with partners across newly formed integrated care systems to meet the health needs of people in their local areas. NHS chief executive Amanda Pritchard has asked Dr Claire Fuller, senior responsible officer of the Surrey Heartlands Integrated Care System, to […]
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