กล้องจุลทรรศน์ Levenhuk LabZZ M3 Microscope 69741

• เหมาะสำหรับเด็กวัยก่อนเริ่มเข้าเรียน (5 ขวบขึ้นไป ภายใต้การแนะนำของผู้ใหญ่)
• สำหรับส่องตัวอย่างที่มีความโปร่งแสง  (มีตัวอย่างวัตถุต่างๆมาให้ในชุดแล้ว)
• เลนส์วัตถุ (Objectives) 3 ชิ้น: 30x 60x 120x  / เลนส์ใกล้ตา (eyepiece) 10x
• ช่วงอัตราขยาย 300-1200x
• วัสดุทำด้วยโลหะ เพื่อความคงทนในการใช้งาน
• ใช้แบบช่องส่องแบบตาเดียว หรือฉายแสงบนกำแพง/กระดาษเปล่า เพื่อให้เห็นภาพหลายคนพร้อมๆกัน
• รวมอุปกรณ์ projector เพื่อฉายแสงในชุดแล้ว
• มีที่ปรับฟอกัสขนาดใหญ่ จับถนัดมือ
• มีแหล่งแสงส่องใต้วัตถุ เป็นแบบหมุนได้ 2 ด้าน กระจกและหลอดไฟ (ใช้ถ่าน AA 2 ก้อน)
• มีที่พักตัวอย่างทรงสี่เหลี่ยม (stage) พร้อมคลิปจับ (specimen clips) ทำด้วยโลหะ 2 ตำแหน่ง
• รวมชุดทดลองสำเร็จรูป Experiment Kit ที่มีอุปกรณ์ 100 ชิ้นในชุด พร้อมท่องโลกระดับไมโคร (micro world) ได้ทันที
• รวมกล่องเก็บอุปกรณ์เพื่อความเรียบร้อยในการเก็บอุปกรณ์หลังใช้งาน
• แบรนคุณภาพจาก USA ; ประกัน 1 ปี

Levenhuk LabZZ M3 Microscope
Magnification: 300–1200x. Experiment kit included.

Levenhuk LabZZ M3 Microscope will become an indispensable assistant for parents of curious children. This is a microscope that will captivate a child for a long time and impart the joy of new discoveries. Included with the microscope are 100 accessories for scientific experiments, sample preparation, and microworld exploration. The microscope’s prime feature is its eyepiece projector that will project desired images on a wall or blank sheet of paper.

The projector reflects images captured by an objective lens on any surface. It should be placed directly into the eyepiece tube. The darker the room, the clearer and sharper the images will be. Using the projector, children can share their achievements in science with family and friends.

The microscope provides three fixed magnifications – 300x, 600x and 1200x. You can switch them by rotating the revolving nosepiece. Image sharpness is easily adjusted with a separate knob on the microscope body. Samples should be placed on the microscope stage and fixed with special metal clips.

Illumination is located below the stage. You can choose between the mirror and the built-in illuminator. Illumination is powered by batteries (not included). The body is made of metal. The kit includes a convenient plastic case for storage of the microscope and all supplied accessories.

The kit includes:
Microscope
Projector
Eyepiece
Prepared slides (5 pcs)
Blank slides (18 pcs)
Cover slips (36 pcs)
Slide stickers (18 pcs)
Flask with dye (2 pcs)
Empty flask (4 pcs)
Magnifier
Scalpel
Spatula
Forceps
Stirring rod
Test tube with cap
Petri dish
Pipette
Measuring can
Spare bulb

Specifications:
Head: monocular
Optics material: optical glass
Magnification, x: 300–1200
Eyepieces: 10х
Objectives: 30х, 60х, 120х
Revolving nosepiece: 3 objectives
Focus: coarse
Body material: metal
Illumination: incandescent lamp, mirror
Power supply: 2 AA batteries (not included)
Additional: eyepiece projector in the kit
Weight: 4.9 lb (2.22 kg)
Package size (LxWxH): 3.9×23.4×15.2 in (10×59.5×38.5 cm)

Levenhuk LabZZ M3 Microscope is not compatible with Levenhuk digital cameras due to non-standard 17-mm eyepiece tube diameter.

References

User Manual: User manual: Levenhuk LabZZ M1 / M2 / M3 Microscopes (pdf)

Looking for something to start your observations with?

Paramecium caudatum is perhaps one of the first protozoans that a young naturalist would explore. These organisms live in fresh standing water. They can also be found in an aquarium, especially if it hasn’t been cleaned for a long time. My ciliate-shoes were taken from the aquarium. Of course, there are only a few ciliate-shoes in aquarium water – the possibility of finding one of them in your microscope’s eyepiece is extremely low. Therefore, we need to increase their concentration. To do so, take a jar (about 17 fluid ounces or 0.5 liters), fill it with aquarium water, put a small spoiled onion and banana peel inside. Put the jar in a warm dark place for 5 to 7 days (don’t close it with a lid).

 

Paramecium caudatum. Animation. Magnification: 64x.

The average size of Paramecium caudatum is 0.02 inches (0.5 mm). For locomotion Paramecium caudatum uses its cilia (about 15 thousand cilia cover its little body!). Moreover, it has two nuclei (a large macronucleus is responsible for nutrition, respiration, metabolism, etc.; and a small micronucleus – for reproduction). Paramecium caudatum feeds on bacteria or algae. The food is caught by an oral groove covered in cilia and then goes to the cell mouth. It is then digested in the digestive vacuole (gullet). Undigested leftovers are ‘thrown out in the open’ through an anal pore (cytoproct). To remove all excess water, our heroine has two contractile vacuoles. They work like pumps on a boat, pumping excess water out of its body. Paramecium caudatum maintains its slipper-like shape thanks to a special membrane (pellicle).

 

Study this image to learn all parts of Paramecium.

Source: https://www.levenhuk.com/reviews/paramecium/